50400638 has 16 divisors (see below), whose sum is σ = 77946624. Its totient is φ = 24428760.

The previous prime is 50400617. The next prime is 50400641. The reversal of 50400638 is 83600405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7553 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (4871664).

Almost surely, 2^50400638 is an apocalyptic number.

50400638 is a deficient number, since it is larger than the sum of its proper divisors (27545986).

50400638 is a wasteful number, since it uses less digits than its factorization.

50400638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 50400638 is about 7099.3406736119. The cubic root of 50400638 is about 369.3845087227.

The spelling of 50400638 in words is "fifty million, four hundred thousand, six hundred thirty-eight".