40943646 has 24 divisors (see below), whose sum is σ = 89837280. Its totient is φ = 13474656.

The previous prime is 40943587. The next prime is 40943659. The reversal of 40943646 is 64634904.

40943646 is a `hidden beast` number, since 4 + 0 + 9 + 4 + 3 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 40943646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12975 + ... + 15818.

It is an arithmetic number, because the mean of its divisors is an integer number (3743220).

Almost surely, 2^40943646 is an apocalyptic number.

40943646 is an abundant number, since it is smaller than the sum of its proper divisors (48893634).

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

40943646 is a wasteful number, since it uses less digits than its factorization.

40943646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28880 (or 28877 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 40943646 is about 6398.7222161929. The cubic root of 40943646 is about 344.6636671822.

The spelling of 40943646 in words is "forty million, nine hundred forty-three thousand, six hundred forty-six".