253394883840 has 432 divisors, whose sum is σ = 943043713920. Its totient is φ = 57818234880.

The previous prime is 253394883839. The next prime is 253394883871. The reversal of 253394883840 is 48388493352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192110701 + ... + 192112019.

It is an arithmetic number, because the mean of its divisors is an integer number (2182971560).

Almost surely, 2^253394883840 is an apocalyptic number.

253394883840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253394883840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471521856960).

253394883840 is an abundant number, since it is smaller than the sum of its proper divisors (689648830080).

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

253394883840 is a wasteful number, since it uses less digits than its factorization.

253394883840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2357 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 253394883840 in words is "two hundred fifty-three billion, three hundred ninety-four million, eight hundred eighty-three thousand, eight hundred forty".