113420424 has 128 divisors (see below), whose sum is σ = 328406400. Its totient is φ = 32438016.

The previous prime is 113420401. The next prime is 113420459. The reversal of 113420424 is 424024311.

It is a self number, because there is not a number n which added to its sum of digits gives 113420424.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2139982 + ... + 2140034.

It is an arithmetic number, because the mean of its divisors is an integer number (2565675).

Almost surely, 2^113420424 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 113420424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164203200).

113420424 is an abundant number, since it is smaller than the sum of its proper divisors (214985976).

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

113420424 is a wasteful number, since it uses less digits than its factorization.

113420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 113420424 is about 10649.9025347653. The cubic root of 113420424 is about 484.0576508519.

Adding to 113420424 its reverse (424024311), we get a palindrome (537444735).

The spelling of 113420424 in words is "one hundred thirteen million, four hundred twenty thousand, four hundred twenty-four".