40240947 has 12 divisors (see below), whose sum is σ = 54199320. Its totient is φ = 26557632.

The previous prime is 40240933. The next prime is 40240969. The reversal of 40240947 is 74904204.

It is not a de Polignac number, because 40240947 - 2⁸ = 40240691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40240927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35079 + ... + 36207.

It is an arithmetic number, because the mean of its divisors is an integer number (4516610).

Almost surely, 2^40240947 is an apocalyptic number.

40240947 is a deficient number, since it is larger than the sum of its proper divisors (13958373).

40240947 is a wasteful number, since it uses less digits than its factorization.

40240947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 40240947 is about 6343.5752537508. The cubic root of 40240947 is about 342.6805044240.

The spelling of 40240947 in words is "forty million, two hundred forty thousand, nine hundred forty-seven".