40940436 has 12 divisors (see below), whose sum is σ = 95527712. Its totient is φ = 13646808.

The previous prime is 40940423. The next prime is 40940443. The reversal of 40940436 is 63404904.

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

It is a super-2 number, since 2×40940436² = 3352238599740192, which contains 22 as substring.

It is a congruent number.

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, 1705840 + ... + 1705863.

Almost surely, 2^40940436 is an apocalyptic number.

It is an amenable number.

40940436 is an abundant number, since it is smaller than the sum of its proper divisors (54587276).

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

40940436 is a wasteful number, since it uses less digits than its factorization.

40940436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411710 (or 3411708 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 40940436 is about 6398.4713799469. The cubic root of 40940436 is about 344.6546596854.

The spelling of 40940436 in words is "forty million, nine hundred forty thousand, four hundred thirty-six".