1253427728 has 40 divisors (see below), whose sum is σ = 2843151360. Its totient is φ = 524079360.

The previous prime is 1253427713. The next prime is 1253427761. The reversal of 1253427728 is 8277243521.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 131888 + ... + 141071.

It is an arithmetic number, because the mean of its divisors is an integer number (71078784).

Almost surely, 2^1253427728 is an apocalyptic number.

It is an amenable number.

1253427728 is an abundant number, since it is smaller than the sum of its proper divisors (1589723632).

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

1253427728 is a wasteful number, since it uses less digits than its factorization.

1253427728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273015 (or 273009 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 1253427728 is about 35403.7812669777. The cubic root of 1253427728 is about 1078.2010885099.

The spelling of 1253427728 in words is "one billion, two hundred fifty-three million, four hundred twenty-seven thousand, seven hundred twenty-eight".