253739460 has 48 divisors (see below), whose sum is σ = 765124416. Its totient is φ = 62458752.

The previous prime is 253739449. The next prime is 253739483. The reversal of 253739460 is 64937352.

It is a super-2 number, since 2×253739460² = 128767427122183200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161874 + ... + 163433.

It is an arithmetic number, because the mean of its divisors is an integer number (15940092).

Almost surely, 2^253739460 is an apocalyptic number.

253739460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253739460 is an abundant number, since it is smaller than the sum of its proper divisors (511384956).

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

253739460 is a wasteful number, since it uses less digits than its factorization.

253739460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325332 (or 325330 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 253739460 is about 15929.2014865780. The cubic root of 253739460 is about 633.0859427744.

The spelling of 253739460 in words is "two hundred fifty-three million, seven hundred thirty-nine thousand, four hundred sixty".