40556532 has 24 divisors (see below), whose sum is σ = 94735872. Its totient is φ = 13504000.

The previous prime is 40556513. The next prime is 40556533. The reversal of 40556532 is 23565504.

It is a self number, because there is not a number n which added to its sum of digits gives 40556532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18157 + ... + 20267.

It is an arithmetic number, because the mean of its divisors is an integer number (3947328).

Almost surely, 2^40556532 is an apocalyptic number.

It is an amenable number.

40556532 is an abundant number, since it is smaller than the sum of its proper divisors (54179340).

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

40556532 is a wasteful number, since it uses less digits than its factorization.

40556532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 40556532 is about 6368.4010552100. The cubic root of 40556532 is about 343.5739836277.

The spelling of 40556532 in words is "forty million, five hundred fifty-six thousand, five hundred thirty-two".