122431398 has 8 divisors (see below), whose sum is σ = 244862808. Its totient is φ = 40810464.

The previous prime is 122431333. The next prime is 122431403. The reversal of 122431398 is 893134221.

It is a sphenic number, since it is the product of 3 distinct primes.

122431398 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10202611 + ... + 10202622.

It is an arithmetic number, because the mean of its divisors is an integer number (30607851).

Almost surely, 2^122431398 is an apocalyptic number.

122431398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122431398 is a wasteful number, since it uses less digits than its factorization.

122431398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20405238.

The product of its digits is 10368, while the sum is 33.

The square root of 122431398 is about 11064.8722541202. The cubic root of 122431398 is about 496.5514672589.

The spelling of 122431398 in words is "one hundred twenty-two million, four hundred thirty-one thousand, three hundred ninety-eight".