1013840740 has 96 divisors (see below), whose sum is σ = 2437843968. Its totient is φ = 350784000.

The previous prime is 1013840731. The next prime is 1013840749. The reversal of 1013840740 is 470483101.

It is an interprime number because it is at equal distance from previous prime (1013840731) and next prime (1013840749).

It is a junction number, because it is equal to n+sod(n) for n = 1013840699 and 1013840708.

It is not an unprimeable number, because it can be changed into a prime (1013840749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414802 + ... + 417238.

It is an arithmetic number, because the mean of its divisors is an integer number (25394208).

Almost surely, 2^1013840740 is an apocalyptic number.

1013840740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013840740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218921984).

1013840740 is an abundant number, since it is smaller than the sum of its proper divisors (1424003228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1013840740 is a wasteful number, since it uses less digits than its factorization.

1013840740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2547 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1013840740 is about 31840.8658801861. The cubic root of 1013840740 is about 1004.5924570522.

It can be divided in two parts, 1013 and 840740, that added together give a triangular number (841753 = T₁₂₉₇).

The spelling of 1013840740 in words is "one billion, thirteen million, eight hundred forty thousand, seven hundred forty".