250340403420 has 36 divisors (see below), whose sum is σ = 759365890920. Its totient is φ = 66757440864.

The previous prime is 250340403347. The next prime is 250340403431. The reversal of 250340403420 is 24304043052.

250340403420 is a `hidden beast` number, since 250 + 3 + 4 + 0 + 403 + 4 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695389830 + ... + 695390189.

It is an arithmetic number, because the mean of its divisors is an integer number (21093496970).

Almost surely, 2^250340403420 is an apocalyptic number.

250340403420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250340403420 is an abundant number, since it is smaller than the sum of its proper divisors (509025487500).

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

250340403420 is a wasteful number, since it uses less digits than its factorization.

250340403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390780034 (or 1390780029 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 250340403420 its reverse (24304043052), we get a palindrome (274644446472).

The spelling of 250340403420 in words is "two hundred fifty billion, three hundred forty million, four hundred three thousand, four hundred twenty".