40638002 has 8 divisors (see below), whose sum is σ = 61009200. Its totient is φ = 20301604.

The previous prime is 40637999. The next prime is 40638029. The reversal of 40638002 is 20083604.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552 + ... + 10587.

It is an arithmetic number, because the mean of its divisors is an integer number (7626150).

Almost surely, 2^40638002 is an apocalyptic number.

40638002 is a deficient number, since it is larger than the sum of its proper divisors (20371198).

40638002 is a wasteful number, since it uses less digits than its factorization.

40638002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40638002 is about 6374.7942711902. The cubic root of 40638002 is about 343.8038870012.

The spelling of 40638002 in words is "forty million, six hundred thirty-eight thousand, two".