1020019740 has 48 divisors (see below), whose sum is σ = 2860817568. Its totient is φ = 271551744.

The previous prime is 1020019723. The next prime is 1020019747. The reversal of 1020019740 is 479100201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020019740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020019747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22914 + ... + 50646.

It is an arithmetic number, because the mean of its divisors is an integer number (59600366).

Almost surely, 2^1020019740 is an apocalyptic number.

1020019740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020019740 is an abundant number, since it is smaller than the sum of its proper divisors (1840797828).

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

1020019740 is a wasteful number, since it uses less digits than its factorization.

1020019740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28358 (or 28356 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1020019740 is about 31937.7478855351. The cubic root of 1020019740 is about 1006.6292032216.

Adding to 1020019740 its reverse (479100201), we get a palindrome (1499119941).

The spelling of 1020019740 in words is "one billion, twenty million, nineteen thousand, seven hundred forty".