40756836 has 12 divisors (see below), whose sum is σ = 95099312. Its totient is φ = 13585608.

The previous prime is 40756831. The next prime is 40756873. The reversal of 40756836 is 63865704.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×40756836² = 3322239361461792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40756794 and 40756803.

It is not an unprimeable number, because it can be changed into a prime (40756831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698190 + ... + 1698213.

Almost surely, 2^40756836 is an apocalyptic number.

It is an amenable number.

40756836 is an abundant number, since it is smaller than the sum of its proper divisors (54342476).

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

40756836 is a wasteful number, since it uses less digits than its factorization.

40756836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396410 (or 3396408 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 40756836 is about 6384.1080817918. The cubic root of 40756836 is about 344.1386789877.

The spelling of 40756836 in words is "forty million, seven hundred fifty-six thousand, eight hundred thirty-six".