40556902 has 8 divisors (see below), whose sum is σ = 61668936. Its totient is φ = 20000592.

The previous prime is 40556891. The next prime is 40556903. The reversal of 40556902 is 20965504.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556903) 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, 138748 + ... + 139039.

It is an arithmetic number, because the mean of its divisors is an integer number (7708617).

Almost surely, 2^40556902 is an apocalyptic number.

40556902 is a deficient number, since it is larger than the sum of its proper divisors (21112034).

40556902 is a wasteful number, since it uses less digits than its factorization.

40556902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277862.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 40556902 is about 6368.4301048218. The cubic root of 40556902 is about 343.5750284408.

The spelling of 40556902 in words is "forty million, five hundred fifty-six thousand, nine hundred two".