40868320 has 48 divisors (see below), whose sum is σ = 97902000. Its totient is φ = 16118784.

The previous prime is 40868299. The next prime is 40868339. The reversal of 40868320 is 2386804.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9931 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (2039625).

Almost surely, 2^40868320 is an apocalyptic number.

40868320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40868320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48951000).

40868320 is an abundant number, since it is smaller than the sum of its proper divisors (57033680).

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

40868320 is a wasteful number, since it uses less digits than its factorization.

40868320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40868320 is about 6392.8334875859. The cubic root of 40868320 is about 344.4521726404.

The spelling of 40868320 in words is "forty million, eight hundred sixty-eight thousand, three hundred twenty".