40647074 has 32 divisors (see below), whose sum is σ = 67568256. Its totient is φ = 18224640.

The previous prime is 40647071. The next prime is 40647077. The reversal of 40647074 is 47074604.

It is an interprime number because it is at equal distance from previous prime (40647071) and next prime (40647077).

It is a super-2 number, since 2×40647074² = 3304369249522952, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40647074.

It is not an unprimeable number, because it can be changed into a prime (40647071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178949 + ... + 179175.

It is an arithmetic number, because the mean of its divisors is an integer number (2111508).

Almost surely, 2^40647074 is an apocalyptic number.

40647074 is a deficient number, since it is larger than the sum of its proper divisors (26921182).

40647074 is a wasteful number, since it uses less digits than its factorization.

40647074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 40647074 is about 6375.5057838575. The cubic root of 40647074 is about 343.8294686131.

The spelling of 40647074 in words is "forty million, six hundred forty-seven thousand, seventy-four".