113438780 has 96 divisors (see below), whose sum is σ = 295806336. Its totient is φ = 35582976.

The previous prime is 113438771. The next prime is 113438821. The reversal of 113438780 is 87834311.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 113438780.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 285542 + ... + 285938.

It is an arithmetic number, because the mean of its divisors is an integer number (3081316).

Almost surely, 2^113438780 is an apocalyptic number.

113438780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113438780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147903168).

113438780 is an abundant number, since it is smaller than the sum of its proper divisors (182367556).

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

113438780 is a wasteful number, since it uses less digits than its factorization.

113438780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 113438780 is about 10650.7642918243. The cubic root of 113438780 is about 484.0837627950.

The spelling of 113438780 in words is "one hundred thirteen million, four hundred thirty-eight thousand, seven hundred eighty".