112778390 has 16 divisors (see below), whose sum is σ = 210001680. Its totient is φ = 43555680.

The previous prime is 112778387. The next prime is 112778399. The reversal of 112778390 is 93877211.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112778399) 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, 194156 + ... + 194735.

It is an arithmetic number, because the mean of its divisors is an integer number (13125105).

Almost surely, 2^112778390 is an apocalyptic number.

112778390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112778390 is a deficient number, since it is larger than the sum of its proper divisors (97223290).

112778390 is a wasteful number, since it uses less digits than its factorization.

112778390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388927.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 112778390 is about 10619.7170395449. The cubic root of 112778390 is about 483.1425607269.

The spelling of 112778390 in words is "one hundred twelve million, seven hundred seventy-eight thousand, three hundred ninety".