40542688 has 24 divisors (see below), whose sum is σ = 84514752. Its totient is φ = 19078656.

The previous prime is 40542683. The next prime is 40542709. The reversal of 40542688 is 88624504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40542683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36720 + ... + 37807.

It is an arithmetic number, because the mean of its divisors is an integer number (3521448).

Almost surely, 2^40542688 is an apocalyptic number.

It is an amenable number.

40542688 is an abundant number, since it is smaller than the sum of its proper divisors (43972064).

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

40542688 is a wasteful number, since it uses less digits than its factorization.

40542688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74554 (or 74546 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 40542688 is about 6367.3140334053. The cubic root of 40542688 is about 343.5348861071.

The spelling of 40542688 in words is "forty million, five hundred forty-two thousand, six hundred eighty-eight".