122584490 has 16 divisors (see below), whose sum is σ = 252173952. Its totient is φ = 42028944.

The previous prime is 122584489. The next prime is 122584493. The reversal of 122584490 is 94485221.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 122584490.

It is not an unprimeable number, because it can be changed into a prime (122584493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875534 + ... + 875673.

It is an arithmetic number, because the mean of its divisors is an integer number (15760872).

Almost surely, 2^122584490 is an apocalyptic number.

122584490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122584490 is an abundant number, since it is smaller than the sum of its proper divisors (129589462).

122584490 is a wasteful number, since it uses less digits than its factorization.

122584490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751221.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 122584490 is about 11071.7880218147. The cubic root of 122584490 is about 496.7583488142.

The spelling of 122584490 in words is "one hundred twenty-two million, five hundred eighty-four thousand, four hundred ninety".