40630664 has 16 divisors (see below), whose sum is σ = 80192400. Its totient is φ = 19246032.

The previous prime is 40630651. The next prime is 40630669. The reversal of 40630664 is 46603604.

It is not an unprimeable number, because it can be changed into a prime (40630669) 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, 133502 + ... + 133805.

It is an arithmetic number, because the mean of its divisors is an integer number (5012025).

Almost surely, 2^40630664 is an apocalyptic number.

It is an amenable number.

40630664 is a deficient number, since it is larger than the sum of its proper divisors (39561736).

40630664 is a wasteful number, since it uses less digits than its factorization.

40630664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267332 (or 267328 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 40630664 is about 6374.2186972209. The cubic root of 40630664 is about 343.7831922109.

The spelling of 40630664 in words is "forty million, six hundred thirty thousand, six hundred sixty-four".