40113522 has 32 divisors (see below), whose sum is σ = 93835200. Its totient is φ = 12667104.

The previous prime is 40113511. The next prime is 40113581. The reversal of 40113522 is 22531104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40113495 and 40113504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18523 + ... + 20574.

It is an arithmetic number, because the mean of its divisors is an integer number (2932350).

Almost surely, 2^40113522 is an apocalyptic number.

40113522 is an abundant number, since it is smaller than the sum of its proper divisors (53721678).

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

40113522 is a wasteful number, since it uses less digits than its factorization.

40113522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39127 (or 39121 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40113522 is about 6333.5236638067. The cubic root of 40113522 is about 342.3184168983.

Adding to 40113522 its reverse (22531104), we get a palindrome (62644626).

The spelling of 40113522 in words is "forty million, one hundred thirteen thousand, five hundred twenty-two".