111438930 has 16 divisors (see below), whose sum is σ = 267453504. Its totient is φ = 29717040.

The previous prime is 111438917. The next prime is 111438937. The reversal of 111438930 is 39834111.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3714631 = 111438930 / (1 + 1 + 1 + 4 + 3 + 8 + 9 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (111438937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857286 + ... + 1857345.

It is an arithmetic number, because the mean of its divisors is an integer number (16715844).

Almost surely, 2^111438930 is an apocalyptic number.

111438930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111438930 is an abundant number, since it is smaller than the sum of its proper divisors (156014574).

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

111438930 is a wasteful number, since it uses less digits than its factorization.

111438930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714641.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 111438930 is about 10556.4638965896. The cubic root of 111438930 is about 481.2221892064. Note that the first 3 decimals are identical.

The spelling of 111438930 in words is "one hundred eleven million, four hundred thirty-eight thousand, nine hundred thirty".