40556956 has 12 divisors (see below), whose sum is σ = 77427000. Its totient is φ = 18434960.

The previous prime is 40556903. The next prime is 40556969. The reversal of 40556956 is 65965504.

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, 460831 + ... + 460918.

It is an arithmetic number, because the mean of its divisors is an integer number (6452250).

Almost surely, 2^40556956 is an apocalyptic number.

It is an amenable number.

40556956 is a deficient number, since it is larger than the sum of its proper divisors (36870044).

40556956 is a wasteful number, since it uses less digits than its factorization.

40556956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921764 (or 921762 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 40556956 is about 6368.4343444837. The cubic root of 40556956 is about 343.5751809265.

It can be divided in two parts, 4055 and 6956, that added together give a palindrome (11011).

The spelling of 40556956 in words is "forty million, five hundred fifty-six thousand, nine hundred fifty-six".