122820486 has 32 divisors (see below), whose sum is σ = 250387200. Its totient is φ = 40155360.

The previous prime is 122820469. The next prime is 122820497. The reversal of 122820486 is 684028221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96925 + ... + 98183.

It is an arithmetic number, because the mean of its divisors is an integer number (7824600).

Almost surely, 2^122820486 is an apocalyptic number.

122820486 is an abundant number, since it is smaller than the sum of its proper divisors (127566714).

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

122820486 is a wasteful number, since it uses less digits than its factorization.

122820486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 122820486 is about 11082.4404352110. The cubic root of 122820486 is about 497.0769259101.

The spelling of 122820486 in words is "one hundred twenty-two million, eight hundred twenty thousand, four hundred eighty-six".