250388040 has 192 divisors, whose sum is σ = 884822400. Its totient is φ = 56512512.

The previous prime is 250388027. The next prime is 250388041. The reversal of 250388040 is 40883052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 250387989 and 250388007.

It is not an unprimeable number, because it can be changed into a prime (250388041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 570141 + ... + 570579.

It is an arithmetic number, because the mean of its divisors is an integer number (4608450).

Almost surely, 2^250388040 is an apocalyptic number.

250388040 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 250388040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442411200).

250388040 is an abundant number, since it is smaller than the sum of its proper divisors (634434360).

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

250388040 is a wasteful number, since it uses less digits than its factorization.

250388040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 250388040 is about 15823.6544451653. The cubic root of 250388040 is about 630.2862896354.

The spelling of 250388040 in words is "two hundred fifty million, three hundred eighty-eight thousand, forty".