40556886 has 8 divisors (see below), whose sum is σ = 81113784. Its totient is φ = 13518960.

The previous prime is 40556839. The next prime is 40556891. The reversal of 40556886 is 68865504.

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

40556886 is an admirable number.

It is a super-2 number, since 2×40556886² = 3289722004033992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3379735 + ... + 3379746.

It is an arithmetic number, because the mean of its divisors is an integer number (10139223).

Almost surely, 2^40556886 is an apocalyptic number.

40556886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40556886 is a wasteful number, since it uses less digits than its factorization.

40556886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759486.

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 40556886 is about 6368.4288486251. The cubic root of 40556886 is about 343.5749832598.

It can be divided in two parts, 405 and 56886, that added together give a triangular number (57291 = T₃₃₈).

The spelling of 40556886 in words is "forty million, five hundred fifty-six thousand, eight hundred eighty-six".