743984136 has 64 divisors (see below), whose sum is σ = 2361859200. Its totient is φ = 212566464.

The previous prime is 743984113. The next prime is 743984149. The reversal of 743984136 is 631489347.

743984136 is a `hidden beast` number, since 7 + 439 + 84 + 136 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 743984091 and 743984100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244515 + ... + 247538.

It is an arithmetic number, because the mean of its divisors is an integer number (36904050).

Almost surely, 2^743984136 is an apocalyptic number.

It is an amenable number.

743984136 is an abundant number, since it is smaller than the sum of its proper divisors (1617875064).

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

743984136 is a wasteful number, since it uses less digits than its factorization.

743984136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492075 (or 492065 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 743984136 is about 27276.0725911924. The cubic root of 743984136 is about 906.1245388206.

The spelling of 743984136 in words is "seven hundred forty-three million, nine hundred eighty-four thousand, one hundred thirty-six".