1010021340 has 96 divisors (see below), whose sum is σ = 3005856000. Its totient is φ = 252527616.

The previous prime is 1010021339. The next prime is 1010021351. The reversal of 1010021340 is 431200101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286911 + ... + 290409.

It is an arithmetic number, because the mean of its divisors is an integer number (31311000).

Almost surely, 2^1010021340 is an apocalyptic number.

1010021340 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 1010021340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502928000).

1010021340 is an abundant number, since it is smaller than the sum of its proper divisors (1995834660).

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

1010021340 is a wasteful number, since it uses less digits than its factorization.

1010021340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811 (or 3809 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1010021340 is about 31780.8329028677. The cubic root of 1010021340 is about 1003.3293497951.

Adding to 1010021340 its reverse (431200101), we get a palindrome (1441221441).

The spelling of 1010021340 in words is "one billion, ten million, twenty-one thousand, three hundred forty".