253091040 has 48 divisors (see below), whose sum is σ = 797238288. Its totient is φ = 67490816.

The previous prime is 253091017. The next prime is 253091089. The reversal of 253091040 is 40190352.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 253091040.

It is a congruent number.

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, 263157 + ... + 264116.

It is an arithmetic number, because the mean of its divisors is an integer number (16609131).

Almost surely, 2^253091040 is an apocalyptic number.

253091040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253091040 is an abundant number, since it is smaller than the sum of its proper divisors (544147248).

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

253091040 is a wasteful number, since it uses less digits than its factorization.

253091040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527291 (or 527283 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 253091040 is about 15908.8352810632. The cubic root of 253091040 is about 632.5462083547.

The spelling of 253091040 in words is "two hundred fifty-three million, ninety-one thousand, forty".