40939344 has 100 divisors (see below), whose sum is σ = 122432640. Its totient is φ = 13193280.

The previous prime is 40939321. The next prime is 40939363. The reversal of 40939344 is 44393904.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40939299 and 40939308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39667 + ... + 40685.

Almost surely, 2^40939344 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 40939344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61216320).

40939344 is an abundant number, since it is smaller than the sum of its proper divisors (81493296).

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

40939344 is a wasteful number, since it uses less digits than its factorization.

40939344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 40939344 is about 6398.3860464964. The cubic root of 40939344 is about 344.6515953455.

The spelling of 40939344 in words is "forty million, nine hundred thirty-nine thousand, three hundred forty-four".