122889450 has 24 divisors (see below), whose sum is σ = 304766208. Its totient is φ = 32770480.

The previous prime is 122889419. The next prime is 122889463. The reversal of 122889450 is 54988221.

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 = 122889399 and 122889408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409482 + ... + 409781.

It is an arithmetic number, because the mean of its divisors is an integer number (12698592).

Almost surely, 2^122889450 is an apocalyptic number.

122889450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122889450 is an abundant number, since it is smaller than the sum of its proper divisors (181876758).

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

122889450 is a wasteful number, since it uses less digits than its factorization.

122889450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819278 (or 819273 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 122889450 is about 11085.5514071245. The cubic root of 122889450 is about 497.1699451343.

The spelling of 122889450 in words is "one hundred twenty-two million, eight hundred eighty-nine thousand, four hundred fifty".