250642120 has 32 divisors (see below), whose sum is σ = 568396800. Its totient is φ = 99465408.

The previous prime is 250642111. The next prime is 250642123. The reversal of 250642120 is 21246052.

It is a junction number, because it is equal to n+sod(n) for n = 250642091 and 250642100.

It is not an unprimeable number, because it can be changed into a prime (250642123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19590 + ... + 29749.

It is an arithmetic number, because the mean of its divisors is an integer number (17762400).

Almost surely, 2^250642120 is an apocalyptic number.

250642120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250642120 is an abundant number, since it is smaller than the sum of its proper divisors (317754680).

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

250642120 is a wasteful number, since it uses less digits than its factorization.

250642120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49477 (or 49473 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 250642120 is about 15831.6808962283. The cubic root of 250642120 is about 630.4994108409.

Adding to 250642120 its reverse (21246052), we get a palindrome (271888172).

The spelling of 250642120 in words is "two hundred fifty million, six hundred forty-two thousand, one hundred twenty".