40629666 has 32 divisors (see below), whose sum is σ = 101311488. Its totient is φ = 10553040.

The previous prime is 40629649. The next prime is 40629703. The reversal of 40629666 is 66692604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43510 + ... + 44433.

It is an arithmetic number, because the mean of its divisors is an integer number (3165984).

Almost surely, 2^40629666 is an apocalyptic number.

40629666 is an abundant number, since it is smaller than the sum of its proper divisors (60681822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40629666 is a wasteful number, since it uses less digits than its factorization.

40629666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87966.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 40629666 is about 6374.1404126360. The cubic root of 40629666 is about 343.7803774367.

The spelling of 40629666 in words is "forty million, six hundred twenty-nine thousand, six hundred sixty-six".