40731867 has 36 divisors (see below), whose sum is σ = 65439192. Its totient is φ = 24393600.

The previous prime is 40731853. The next prime is 40731869. The reversal of 40731867 is 76813704.

It is not a de Polignac number, because 40731867 - 2⁴ = 40731851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40731869) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 122892 + ... + 123222.

Almost surely, 2^40731867 is an apocalyptic number.

40731867 is a deficient number, since it is larger than the sum of its proper divisors (24707325).

40731867 is a wasteful number, since it uses less digits than its factorization.

40731867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 40731867 is about 6382.1522231924. The cubic root of 40731867 is about 344.0683876790.

The spelling of 40731867 in words is "forty million, seven hundred thirty-one thousand, eight hundred sixty-seven".