40113668 has 24 divisors (see below), whose sum is σ = 82095552. Its totient is φ = 16791264.

The previous prime is 40113653. The next prime is 40113677. The reversal of 40113668 is 86631104.

It is a self number, because there is not a number n which added to its sum of digits gives 40113668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15455 + ... + 17862.

It is an arithmetic number, because the mean of its divisors is an integer number (3420648).

Almost surely, 2^40113668 is an apocalyptic number.

It is an amenable number.

40113668 is an abundant number, since it is smaller than the sum of its proper divisors (41981884).

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

40113668 is a wasteful number, since it uses less digits than its factorization.

40113668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33371 (or 33369 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40113668 is about 6333.5351897657. The cubic root of 40113668 is about 342.3188322065.

The spelling of 40113668 in words is "forty million, one hundred thirteen thousand, six hundred sixty-eight".