40913824 has 72 divisors (see below), whose sum is σ = 95017860. Its totient is φ = 17289216.

The previous prime is 40913813. The next prime is 40913833. The reversal of 40913824 is 42831904.

It can be written as a sum of positive squares in 2 ways, for example, as 37601424 + 3312400 = 6132^2 + 1820^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151962 + ... + 152230.

Almost surely, 2^40913824 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 40913824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47508930).

40913824 is an abundant number, since it is smaller than the sum of its proper divisors (54104036).

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

40913824 is a wasteful number, since it uses less digits than its factorization.

40913824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 40913824 is about 6396.3914827034. The cubic root of 40913824 is about 344.5799663119.

The spelling of 40913824 in words is "forty million, nine hundred thirteen thousand, eight hundred twenty-four".