122798388 has 12 divisors (see below), whose sum is σ = 286529600. Its totient is φ = 40932792.

The previous prime is 122798381. The next prime is 122798393. The reversal of 122798388 is 883897221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122798381) 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, 5116588 + ... + 5116611.

Almost surely, 2^122798388 is an apocalyptic number.

It is an amenable number.

122798388 is an abundant number, since it is smaller than the sum of its proper divisors (163731212).

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

122798388 is a wasteful number, since it uses less digits than its factorization.

122798388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10233206 (or 10233204 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 122798388 is about 11081.4434077876. The cubic root of 122798388 is about 497.0471125755.

The spelling of 122798388 in words is "one hundred twenty-two million, seven hundred ninety-eight thousand, three hundred eighty-eight".