40531677 has 4 divisors (see below), whose sum is σ = 54042240. Its totient is φ = 27021116.

The previous prime is 40531619. The next prime is 40531691. The reversal of 40531677 is 77613504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40531677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40531607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6755277 + ... + 6755282.

It is an arithmetic number, because the mean of its divisors is an integer number (13510560).

Almost surely, 2^40531677 is an apocalyptic number.

It is an amenable number.

40531677 is a deficient number, since it is larger than the sum of its proper divisors (13510563).

40531677 is a wasteful number, since it uses less digits than its factorization.

40531677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13510562.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 40531677 is about 6366.4493243880. The cubic root of 40531677 is about 343.5037830458.

The spelling of 40531677 in words is "forty million, five hundred thirty-one thousand, six hundred seventy-seven".