40556682 has 48 divisors (see below), whose sum is σ = 92409408. Its totient is φ = 12830400.

The previous prime is 40556653. The next prime is 40556687. The reversal of 40556682 is 28665504.

40556682 is a `hidden beast` number, since 40 + 556 + 68 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67182 + ... + 67782.

It is an arithmetic number, because the mean of its divisors is an integer number (1925196).

Almost surely, 2^40556682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40556682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46204704).

40556682 is an abundant number, since it is smaller than the sum of its proper divisors (51852726).

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

40556682 is a wasteful number, since it uses less digits than its factorization.

40556682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 40556682 is about 6368.4128320956. The cubic root of 40556682 is about 343.5744072013.

The spelling of 40556682 in words is "forty million, five hundred fifty-six thousand, six hundred eighty-two".