107778390 has 16 divisors (see below), whose sum is σ = 258668208. Its totient is φ = 28740896.

The previous prime is 107778367. The next prime is 107778397. The reversal of 107778390 is 93877701.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107778397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796277 + ... + 1796336.

It is an arithmetic number, because the mean of its divisors is an integer number (16166763).

Almost surely, 2^107778390 is an apocalyptic number.

107778390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

107778390 is an abundant number, since it is smaller than the sum of its proper divisors (150889818).

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

107778390 is a wasteful number, since it uses less digits than its factorization.

107778390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592623.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 107778390 is about 10381.6371541294. The cubic root of 107778390 is about 475.8943666687.

The spelling of 107778390 in words is "one hundred seven million, seven hundred seventy-eight thousand, three hundred ninety".