253404984 has 64 divisors (see below), whose sum is σ = 755504640. Its totient is φ = 69252480.

The previous prime is 253404979. The next prime is 253405001. The reversal of 253404984 is 489404352.

It is a congruent number.

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, 28927 + ... + 36654.

It is an arithmetic number, because the mean of its divisors is an integer number (11804760).

Almost surely, 2^253404984 is an apocalyptic number.

253404984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253404984 is an abundant number, since it is smaller than the sum of its proper divisors (502099656).

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

253404984 is a wasteful number, since it uses less digits than its factorization.

253404984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65620 (or 65616 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 253404984 is about 15918.6991930874. The cubic root of 253404984 is about 632.8076452839.

The spelling of 253404984 in words is "two hundred fifty-three million, four hundred four thousand, nine hundred eighty-four".