253911490 has 64 divisors (see below), whose sum is σ = 577165824. Its totient is φ = 78363648.

The previous prime is 253911487. The next prime is 253911503. The reversal of 253911490 is 94119352.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 22732 + ... + 32008.

It is an arithmetic number, because the mean of its divisors is an integer number (9018216).

Almost surely, 2^253911490 is an apocalyptic number.

253911490 is an abundant number, since it is smaller than the sum of its proper divisors (323254334).

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

253911490 is a wasteful number, since it uses less digits than its factorization.

253911490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 253911490 is about 15934.6004028968. The cubic root of 253911490 is about 633.2289834235.

The spelling of 253911490 in words is "two hundred fifty-three million, nine hundred eleven thousand, four hundred ninety".