250431020 has 96 divisors (see below), whose sum is σ = 653291520. Its totient is φ = 78693120.

The previous prime is 250431019. The next prime is 250431023. The reversal of 250431020 is 20134052.

It is a self number, because there is not a number n which added to its sum of digits gives 250431020.

It is not an unprimeable number, because it can be changed into a prime (250431023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80942 + ... + 83978.

It is an arithmetic number, because the mean of its divisors is an integer number (6805120).

Almost surely, 2^250431020 is an apocalyptic number.

250431020 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 250431020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326645760).

250431020 is an abundant number, since it is smaller than the sum of its proper divisors (402860500).

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

250431020 is a wasteful number, since it uses less digits than its factorization.

250431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3101 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 250431020 is about 15825.0124802478. The cubic root of 250431020 is about 630.3223512018.

Adding to 250431020 its reverse (20134052), we get a palindrome (270565072).

The spelling of 250431020 in words is "two hundred fifty million, four hundred thirty-one thousand, twenty".