40674591 has 12 divisors (see below), whose sum is σ = 62208432. Its totient is φ = 25521216.

The previous prime is 40674563. The next prime is 40674607. The reversal of 40674591 is 19547604.

40674591 is a `hidden beast` number, since 4 + 0 + 67 + 4 + 591 = 666.

It is not a de Polignac number, because 40674591 - 2⁶ = 40674527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40674191) 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, 132771 + ... + 133076.

It is an arithmetic number, because the mean of its divisors is an integer number (5184036).

Almost surely, 2^40674591 is an apocalyptic number.

40674591 is a deficient number, since it is larger than the sum of its proper divisors (21533841).

40674591 is a wasteful number, since it uses less digits than its factorization.

40674591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265870 (or 265867 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40674591 is about 6377.6634436132. The cubic root of 40674591 is about 343.9070389470.

The spelling of 40674591 in words is "forty million, six hundred seventy-four thousand, five hundred ninety-one".