1028572452 has 24 divisors (see below), whose sum is σ = 2666669600. Its totient is φ = 342857448.

The previous prime is 1028572421. The next prime is 1028572481. The reversal of 1028572452 is 2542758201.

It is a happy number.

1028572452 is a `hidden beast` number, since 10 + 28 + 572 + 4 + 52 = 666.

1028572452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1028572452² = 2115922578026584608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4761802 + ... + 4762017.

Almost surely, 2^1028572452 is an apocalyptic number.

1028572452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1028572452 is an abundant number, since it is smaller than the sum of its proper divisors (1638097148).

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

1028572452 is a wasteful number, since it uses less digits than its factorization.

1028572452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523832 (or 9523824 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 1028572452 is about 32071.3649849831. The cubic root of 1028572452 is about 1009.4348542397.

The spelling of 1028572452 in words is "one billion, twenty-eight million, five hundred seventy-two thousand, four hundred fifty-two".