250420400424 has 24 divisors (see below), whose sum is σ = 678221918010. Its totient is φ = 83473466784.

The previous prime is 250420400407. The next prime is 250420400437. The reversal of 250420400424 is 424004024052.

250420400424 is a `hidden beast` number, since 250 + 4 + 2 + 0 + 400 + 4 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132654751524 + 117765648900 = 364218^2 + 343170^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739030487 + ... + 1739030630.

Almost surely, 2^250420400424 is an apocalyptic number.

250420400424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

250420400424 is an abundant number, since it is smaller than the sum of its proper divisors (427801517586).

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

250420400424 is a wasteful number, since it uses less digits than its factorization.

250420400424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478061129 (or 3478061122 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 250420400424 its reverse (424004024052), we get a palindrome (674424424476).

The spelling of 250420400424 in words is "two hundred fifty billion, four hundred twenty million, four hundred thousand, four hundred twenty-four".