40912947 has 24 divisors (see below), whose sum is σ = 63152960. Its totient is φ = 25446960.

The previous prime is 40912933. The next prime is 40913011. The reversal of 40912947 is 74921904.

It is not a de Polignac number, because 40912947 - 2⁷ = 40912819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40912747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9672 + ... + 13242.

Almost surely, 2^40912947 is an apocalyptic number.

40912947 is a deficient number, since it is larger than the sum of its proper divisors (22240013).

40912947 is a wasteful number, since it uses less digits than its factorization.

40912947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40912947 is about 6396.3229280580. The cubic root of 40912947 is about 344.5775042362.

The spelling of 40912947 in words is "forty million, nine hundred twelve thousand, nine hundred forty-seven".