400616244 has 36 divisors (see below), whose sum is σ = 1157336544. Its totient is φ = 114461712.

The previous prime is 400616213. The next prime is 400616257. The reversal of 400616244 is 442616004.

400616244 is a `hidden beast` number, since 4 + 0 + 0 + 616 + 2 + 44 = 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, 794622 + ... + 795125.

Almost surely, 2^400616244 is an apocalyptic number.

It is an amenable number.

400616244 is an abundant number, since it is smaller than the sum of its proper divisors (756720300).

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

400616244 is a wasteful number, since it uses less digits than its factorization.

400616244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589764 (or 1589759 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 400616244 is about 20015.4001708684. The cubic root of 400616244 is about 737.1844826349.

The spelling of 400616244 in words is "four hundred million, six hundred sixteen thousand, two hundred forty-four".