113722818 has 72 divisors (see below), whose sum is σ = 259911792. Its totient is φ = 33145200.

The previous prime is 113722801. The next prime is 113722823. The reversal of 113722818 is 818227311.

It is a super-2 number, since 2×113722818² = 25865758667722248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 697605 + ... + 697767.

It is an arithmetic number, because the mean of its divisors is an integer number (3609886).

Almost surely, 2^113722818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113722818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129955896).

113722818 is an abundant number, since it is smaller than the sum of its proper divisors (146188974).

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

113722818 is a wasteful number, since it uses less digits than its factorization.

113722818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 210 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 113722818 is about 10664.0901158983. The cubic root of 113722818 is about 484.4874565558.

The spelling of 113722818 in words is "one hundred thirteen million, seven hundred twenty-two thousand, eight hundred eighteen".