250465981440 has 352 divisors, whose sum is σ = 844663599360. Its totient is φ = 63219695616.

The previous prime is 250465981433. The next prime is 250465981483. The reversal of 250465981440 is 44189564052.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 250465981440.

It is a congruent number.

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, 34264506 + ... + 34271814.

Almost surely, 2^250465981440 is an apocalyptic number.

250465981440 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 250465981440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422331799680).

250465981440 is an abundant number, since it is smaller than the sum of its proper divisors (594197617920).

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

250465981440 is a wasteful number, since it uses less digits than its factorization.

250465981440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7457 (or 7439 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 250465981440 in words is "two hundred fifty billion, four hundred sixty-five million, nine hundred eighty-one thousand, four hundred forty".