36646740 has 72 divisors (see below), whose sum is σ = 119720328. Its totient is φ = 9020160.

The previous prime is 36646723. The next prime is 36646759. The reversal of 36646740 is 4764663.

36646740 is a `hidden beast` number, since 3 + 6 + 646 + 7 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7551504 + 29095236 = 2748^2 + 5394^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 36646695 and 36646704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5491 + ... + 10170.

Almost surely, 2^36646740 is an apocalyptic number.

36646740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36646740 is an abundant number, since it is smaller than the sum of its proper divisors (83073588).

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

36646740 is a wasteful number, since it uses less digits than its factorization.

36646740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15689 (or 15684 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 36646740 is about 6053.6550942385. The cubic root of 36646740 is about 332.1583050146.

It can be divided in two parts, 3664 and 6740, that added together give a square (10404 = 102²).

The spelling of 36646740 in words is "thirty-six million, six hundred forty-six thousand, seven hundred forty".