113453388 has 72 divisors (see below), whose sum is σ = 303514848. Its totient is φ = 35659008.

The previous prime is 113453387. The next prime is 113453429. The reversal of 113453388 is 883354311.

113453388 is a `hidden beast` number, since 11 + 34 + 533 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (113453387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59506 + ... + 61382.

It is an arithmetic number, because the mean of its divisors is an integer number (4215484).

Almost surely, 2^113453388 is an apocalyptic number.

113453388 is a gapful number since it is divisible by the number (18) 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 113453388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151757424).

113453388 is an abundant number, since it is smaller than the sum of its proper divisors (190061460).

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

113453388 is a wasteful number, since it uses less digits than its factorization.

113453388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1978 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 113453388 is about 10651.4500421304. The cubic root of 113453388 is about 484.1045410864.

The spelling of 113453388 in words is "one hundred thirteen million, four hundred fifty-three thousand, three hundred eighty-eight".