40739974 has 12 divisors (see below), whose sum is σ = 67170852. Its totient is φ = 18518060.

The previous prime is 40739957. The next prime is 40739989. The reversal of 40739974 is 47993704.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40739974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83932 + ... + 84415.

It is an arithmetic number, because the mean of its divisors is an integer number (5597571).

Almost surely, 2^40739974 is an apocalyptic number.

40739974 is a deficient number, since it is larger than the sum of its proper divisors (26430878).

40739974 is a wasteful number, since it uses less digits than its factorization.

40739974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168371 (or 168360 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 40739974 is about 6382.7873221658. The cubic root of 40739974 is about 344.0912131928.

The spelling of 40739974 in words is "forty million, seven hundred thirty-nine thousand, nine hundred seventy-four".