122394678 has 16 divisors (see below), whose sum is σ = 279759360. Its totient is φ = 34969896.

The previous prime is 122394673. The next prime is 122394689. The reversal of 122394678 is 876493221.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2914159 = 122394678 / (1 + 2 + 2 + 3 + 9 + 4 + 6 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122394673) 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, 1457038 + ... + 1457121.

It is an arithmetic number, because the mean of its divisors is an integer number (17484960).

Almost surely, 2^122394678 is an apocalyptic number.

122394678 is an abundant number, since it is smaller than the sum of its proper divisors (157364682).

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

122394678 is a wasteful number, since it uses less digits than its factorization.

122394678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914171.

The product of its digits is 145152, while the sum is 42.

The square root of 122394678 is about 11063.2128244918. The cubic root of 122394678 is about 496.5018198826.

The spelling of 122394678 in words is "one hundred twenty-two million, three hundred ninety-four thousand, six hundred seventy-eight".