40537860 has 96 divisors (see below), whose sum is σ = 131144832. Its totient is φ = 9246720.

The previous prime is 40537841. The next prime is 40537867. The reversal of 40537860 is 6873504.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (40537867) 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 31 ways as a sum of consecutive naturals, for example, 9414 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (1366092).

Almost surely, 2^40537860 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 40537860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65572416).

40537860 is an abundant number, since it is smaller than the sum of its proper divisors (90606972).

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

40537860 is a wasteful number, since it uses less digits than its factorization.

40537860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 40537860 is about 6366.9348983636. The cubic root of 40537860 is about 343.5212490219.

The spelling of 40537860 in words is "forty million, five hundred thirty-seven thousand, eight hundred sixty".