632161404 has 144 divisors (see below), whose sum is σ = 1884250368. Its totient is φ = 174956544.

The previous prime is 632161399. The next prime is 632161441. The reversal of 632161404 is 404161236.

632161404 is a `hidden beast` number, since 632 + 16 + 14 + 0 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2459644 + ... + 2459900.

It is an arithmetic number, because the mean of its divisors is an integer number (13085072).

Almost surely, 2^632161404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632161404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942125184).

632161404 is an abundant number, since it is smaller than the sum of its proper divisors (1252088964).

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

632161404 is a wasteful number, since it uses less digits than its factorization.

632161404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 632161404 is about 25142.8201282195. The cubic root of 632161404 is about 858.2411339137.

It can be divided in two parts, 63216 and 1404, that added together give a triangular number (64620 = T₃₅₉).

The spelling of 632161404 in words is "six hundred thirty-two million, one hundred sixty-one thousand, four hundred four".