40859964 has 72 divisors (see below), whose sum is σ = 108279808. Its totient is φ = 13471920.

The previous prime is 40859957. The next prime is 40859969. The reversal of 40859964 is 46995804.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40859969) 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, 123279 + ... + 123609.

Almost surely, 2^40859964 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 40859964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54139904).

40859964 is an abundant number, since it is smaller than the sum of its proper divisors (67419844).

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

40859964 is a wasteful number, since it uses less digits than its factorization.

40859964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 40859964 is about 6392.1799098586. The cubic root of 40859964 is about 344.4286952987.

The spelling of 40859964 in words is "forty million, eight hundred fifty-nine thousand, nine hundred sixty-four".