40732047 has 24 divisors (see below), whose sum is σ = 61667840. Its totient is φ = 25874640.

The previous prime is 40732009. The next prime is 40732049. The reversal of 40732047 is 74023704.

It is not a de Polignac number, because 40732047 - 2⁸ = 40731791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40732047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40732049) 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, 17604 + ... + 19782.

Almost surely, 2^40732047 is an apocalyptic number.

40732047 is a deficient number, since it is larger than the sum of its proper divisors (20935793).

40732047 is a wasteful number, since it uses less digits than its factorization.

40732047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283 (or 2280 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 40732047 is about 6382.1663250028. The cubic root of 40732047 is about 344.0688945075.

The spelling of 40732047 in words is "forty million, seven hundred thirty-two thousand, forty-seven".