263628432 has 50 divisors (see below), whose sum is σ = 763020918. Its totient is φ = 87875712.

The previous prime is 263628403. The next prime is 263628457. The reversal of 263628432 is 234826362.

263628432 is a `hidden beast` number, since 26 + 3 + 628 + 4 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 263607696 + 20736 = 16236^2 + 144^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 100413 + ... + 103004.

Almost surely, 2^263628432 is an apocalyptic number.

It is an amenable number.

263628432 is an abundant number, since it is smaller than the sum of its proper divisors (499392486).

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

263628432 is a wasteful number, since it uses less digits than its factorization.

263628432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203437 (or 203422 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 263628432 is about 16236.6385683737. The cubic root of 263628432 is about 641.2057607728.

The spelling of 263628432 in words is "two hundred sixty-three million, six hundred twenty-eight thousand, four hundred thirty-two".