122399436 has 24 divisors (see below), whose sum is σ = 289041984. Its totient is φ = 40307920.

The previous prime is 122399429. The next prime is 122399437. The reversal of 122399436 is 634993221.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 122399394 and 122399403.

It is not an unprimeable number, because it can be changed into a prime (122399437) 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, 60450 + ... + 62441.

It is an arithmetic number, because the mean of its divisors is an integer number (12043416).

Almost surely, 2^122399436 is an apocalyptic number.

It is an amenable number.

122399436 is an abundant number, since it is smaller than the sum of its proper divisors (166642548).

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

122399436 is a wasteful number, since it uses less digits than its factorization.

122399436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122981 (or 122979 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 122399436 is about 11063.4278593933. The cubic root of 122399436 is about 496.5082535094.

The spelling of 122399436 in words is "one hundred twenty-two million, three hundred ninety-nine thousand, four hundred thirty-six".