536401836 has 18 divisors (see below), whose sum is σ = 1355904732. Its totient is φ = 178800600.

The previous prime is 536401819. The next prime is 536401849. The reversal of 536401836 is 638104635.

536401836 is a `hidden beast` number, since 5 + 3 + 640 + 1 + 8 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 14900051 = 536401836 / (5 + 3 + 6 + 4 + 0 + 1 + 8 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 536401836.

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, 7449990 + ... + 7450061.

Almost surely, 2^536401836 is an apocalyptic number.

It is an amenable number.

536401836 is an abundant number, since it is smaller than the sum of its proper divisors (819502896).

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

536401836 is a wasteful number, since it uses less digits than its factorization.

536401836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14900061 (or 14900056 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 536401836 is about 23160.3505154823. The cubic root of 536401836 is about 812.5125639398.

The spelling of 536401836 in words is "five hundred thirty-six million, four hundred one thousand, eight hundred thirty-six".