40249708 has 12 divisors (see below), whose sum is σ = 70487872. Its totient is φ = 20110320.

The previous prime is 40249697. The next prime is 40249711. The reversal of 40249708 is 80794204.

It is a happy number.

It is a hoax number, since the sum of its digits (34) 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, 4741 + ... + 10147.

Almost surely, 2^40249708 is an apocalyptic number.

It is an amenable number.

40249708 is a deficient number, since it is larger than the sum of its proper divisors (30238164).

40249708 is a wasteful number, since it uses less digits than its factorization.

40249708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272 (or 7270 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40249708 is about 6344.2657573592. The cubic root of 40249708 is about 342.7053713508.

The spelling of 40249708 in words is "forty million, two hundred forty-nine thousand, seven hundred eight".