40664630 has 16 divisors (see below), whose sum is σ = 73869840. Its totient is φ = 16116192.

The previous prime is 40664623. The next prime is 40664651. The reversal of 40664630 is 3646604.

It is a super-2 number, since 2×40664630² = 3307224266073800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40664593 and 40664602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17564 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (4616865).

Almost surely, 2^40664630 is an apocalyptic number.

40664630 is a deficient number, since it is larger than the sum of its proper divisors (33205210).

40664630 is a wasteful number, since it uses less digits than its factorization.

40664630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37423.

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

The square root of 40664630 is about 6376.8824671621. The cubic root of 40664630 is about 343.8789629614.

The spelling of 40664630 in words is "forty million, six hundred sixty-four thousand, six hundred thirty".