40309677 has 8 divisors (see below), whose sum is σ = 59718080. Its totient is φ = 26873100.

The previous prime is 40309663. The next prime is 40309693. The reversal of 40309677 is 77690304.

It is not a de Polignac number, because 40309677 - 2⁸ = 40309421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40309637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746449 + ... + 746502.

It is an arithmetic number, because the mean of its divisors is an integer number (7464760).

Almost surely, 2^40309677 is an apocalyptic number.

It is an amenable number.

40309677 is a deficient number, since it is larger than the sum of its proper divisors (19408403).

40309677 is a wasteful number, since it uses less digits than its factorization.

40309677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492960 (or 1492954 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 40309677 is about 6348.9902346751. The cubic root of 40309677 is about 342.8754885273.

The spelling of 40309677 in words is "forty million, three hundred nine thousand, six hundred seventy-seven".