1023457872 has 40 divisors (see below), whose sum is σ = 2645624320. Its totient is φ = 340934400.

The previous prime is 1023457871. The next prime is 1023457891. The reversal of 1023457872 is 2787543201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023457872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023457871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80529 + ... + 92367.

It is an arithmetic number, because the mean of its divisors is an integer number (66140608).

Almost surely, 2^1023457872 is an apocalyptic number.

1023457872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023457872 is an abundant number, since it is smaller than the sum of its proper divisors (1622166448).

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

1023457872 is a wasteful number, since it uses less digits than its factorization.

1023457872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651 (or 13645 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 1023457872 is about 31991.5281285530. The cubic root of 1023457872 is about 1007.7589339125.

The spelling of 1023457872 in words is "one billion, twenty-three million, four hundred fifty-seven thousand, eight hundred seventy-two".