40599522 has 64 divisors (see below), whose sum is σ = 94617600. Its totient is φ = 12888720.

The previous prime is 40599511. The next prime is 40599529. The reversal of 40599522 is 22599504.

It is a happy number.

40599522 is a `hidden beast` number, since 40 + 5 + 99 + 522 = 666.

It is not an unprimeable number, because it can be changed into a prime (40599529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132093 + ... + 132399.

It is an arithmetic number, because the mean of its divisors is an integer number (1478400).

Almost surely, 2^40599522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40599522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47308800).

40599522 is an abundant number, since it is smaller than the sum of its proper divisors (54018078).

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

40599522 is a wasteful number, since it uses less digits than its factorization.

40599522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 40599522 is about 6371.7754197712. The cubic root of 40599522 is about 343.6953371152.

The spelling of 40599522 in words is "forty million, five hundred ninety-nine thousand, five hundred twenty-two".