111934290 has 64 divisors (see below), whose sum is σ = 306343296. Its totient is φ = 25930752.

The previous prime is 111934279. The next prime is 111934367. The reversal of 111934290 is 92439111.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1812 + ... + 15071.

It is an arithmetic number, because the mean of its divisors is an integer number (4786614).

Almost surely, 2^111934290 is an apocalyptic number.

111934290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111934290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153171648).

111934290 is an abundant number, since it is smaller than the sum of its proper divisors (194409006).

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

111934290 is a wasteful number, since it uses less digits than its factorization.

111934290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16923.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 111934290 is about 10579.9002830840. The cubic root of 111934290 is about 481.9341662695.

The spelling of 111934290 in words is "one hundred eleven million, nine hundred thirty-four thousand, two hundred ninety".