122778370 has 64 divisors (see below), whose sum is σ = 270998784. Its totient is φ = 39409920.

The previous prime is 122778353. The next prime is 122778377. The reversal of 122778370 is 73877221.

It is not an unprimeable number, because it can be changed into a prime (122778377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31024 + ... + 34756.

It is an arithmetic number, because the mean of its divisors is an integer number (4234356).

Almost surely, 2^122778370 is an apocalyptic number.

122778370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122778370 is an abundant number, since it is smaller than the sum of its proper divisors (148220414).

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

122778370 is a wasteful number, since it uses less digits than its factorization.

122778370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 122778370 is about 11080.5401492888. The cubic root of 122778370 is about 497.0201023680.

It can be divided in two parts, 1227 and 78370, that added together give a palindrome (79597).

The spelling of 122778370 in words is "one hundred twenty-two million, seven hundred seventy-eight thousand, three hundred seventy".