1253733828 has 24 divisors (see below), whose sum is σ = 2965454688. Its totient is φ = 412186176.

The previous prime is 1253733809. The next prime is 1253733847. The reversal of 1253733828 is 8283373521.

It is an interprime number because it is at equal distance from previous prime (1253733809) and next prime (1253733847).

It is a super-2 number, since 2×1253733828² = 3143697022943067168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1253733828.

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, 714726 + ... + 716477.

It is an arithmetic number, because the mean of its divisors is an integer number (123560612).

Almost surely, 2^1253733828 is an apocalyptic number.

It is an amenable number.

1253733828 is an abundant number, since it is smaller than the sum of its proper divisors (1711720860).

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

1253733828 is a wasteful number, since it uses less digits than its factorization.

1253733828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431283 (or 1431281 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 1253733828 is about 35408.1039876467. The cubic root of 1253733828 is about 1078.2888506477.

The spelling of 1253733828 in words is "one billion, two hundred fifty-three million, seven hundred thirty-three thousand, eight hundred twenty-eight".