40556488 has 64 divisors (see below), whose sum is σ = 93542400. Its totient is φ = 16096320.

The previous prime is 40556479. The next prime is 40556497. The reversal of 40556488 is 88465504.

It is an interprime number because it is at equal distance from previous prime (40556479) and next prime (40556497).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40556488.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49603 + ... + 50413.

It is an arithmetic number, because the mean of its divisors is an integer number (1461600).

Almost surely, 2^40556488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40556488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46771200).

40556488 is an abundant number, since it is smaller than the sum of its proper divisors (52985912).

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

40556488 is a wasteful number, since it uses less digits than its factorization.

40556488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 40556488 is about 6368.3976006528. The cubic root of 40556488 is about 343.5738593792.

The spelling of 40556488 in words is "forty million, five hundred fifty-six thousand, four hundred eighty-eight".