40782536 has 16 divisors (see below), whose sum is σ = 78332940. Its totient is φ = 19893760.

The previous prime is 40782529. The next prime is 40782551. The reversal of 40782536 is 63528704.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30580900 + 10201636 = 5530^2 + 3194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40782496 and 40782505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61841 + ... + 62496.

Almost surely, 2^40782536 is an apocalyptic number.

It is an amenable number.

40782536 is a deficient number, since it is larger than the sum of its proper divisors (37550404).

40782536 is a wasteful number, since it uses less digits than its factorization.

40782536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124384 (or 124380 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 40782536 is about 6386.1205751223. The cubic root of 40782536 is about 344.2109981908.

The spelling of 40782536 in words is "forty million, seven hundred eighty-two thousand, five hundred thirty-six".