111959420 has 12 divisors (see below), whose sum is σ = 235114824. Its totient is φ = 44783760.

The previous prime is 111959417. The next prime is 111959429. The reversal of 111959420 is 24959111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111959429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2798966 + ... + 2799005.

It is an arithmetic number, because the mean of its divisors is an integer number (19592902).

Almost surely, 2^111959420 is an apocalyptic number.

111959420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111959420 is an abundant number, since it is smaller than the sum of its proper divisors (123155404).

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

111959420 is a wasteful number, since it uses less digits than its factorization.

111959420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597980 (or 5597978 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 111959420 is about 10581.0878457746. The cubic root of 111959420 is about 481.9702293901.

The spelling of 111959420 in words is "one hundred eleven million, nine hundred fifty-nine thousand, four hundred twenty".