40338582 has 16 divisors (see below), whose sum is σ = 80740800. Its totient is φ = 13435592.

The previous prime is 40338553. The next prime is 40338587. The reversal of 40338582 is 28583304.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40338587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10993 + ... + 14195.

It is an arithmetic number, because the mean of its divisors is an integer number (5046300).

Almost surely, 2^40338582 is an apocalyptic number.

40338582 is an abundant number, since it is smaller than the sum of its proper divisors (40402218).

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

40338582 is a wasteful number, since it uses less digits than its factorization.

40338582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5307.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40338582 is about 6351.2661729768. The cubic root of 40338582 is about 342.9574245846.

The spelling of 40338582 in words is "forty million, three hundred thirty-eight thousand, five hundred eighty-two".