40349964 has 12 divisors (see below), whose sum is σ = 94149944. Its totient is φ = 13449984.

The previous prime is 40349951. The next prime is 40349989. The reversal of 40349964 is 46994304.

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

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 1681237 + ... + 1681260.

Almost surely, 2^40349964 is an apocalyptic number.

It is an amenable number.

40349964 is an abundant number, since it is smaller than the sum of its proper divisors (53799980).

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

40349964 is a wasteful number, since it uses less digits than its factorization.

40349964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362504 (or 3362502 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 40349964 is about 6352.1621515827. The cubic root of 40349964 is about 342.9896780264.

The spelling of 40349964 in words is "forty million, three hundred forty-nine thousand, nine hundred sixty-four".