113420538 has 192 divisors, whose sum is σ = 332467200. Its totient is φ = 27060480.

The previous prime is 113420513. The next prime is 113420539. The reversal of 113420538 is 835024311.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113420539) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1553670 + ... + 1553742.

It is an arithmetic number, because the mean of its divisors is an integer number (1731600).

Almost surely, 2^113420538 is an apocalyptic number.

113420538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113420538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166233600).

113420538 is an abundant number, since it is smaller than the sum of its proper divisors (219046662).

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

113420538 is a wasteful number, since it uses less digits than its factorization.

113420538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 113420538 is about 10649.9078869256. The cubic root of 113420538 is about 484.0578130289.

Adding to 113420538 its reverse (835024311), we get a palindrome (948444849).

The spelling of 113420538 in words is "one hundred thirteen million, four hundred twenty thousand, five hundred thirty-eight".