122430890 has 16 divisors (see below), whose sum is σ = 225501408. Its totient is φ = 47833296.

The previous prime is 122430883. The next prime is 122430941. The reversal of 122430890 is 98034221.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 141932 + ... + 142791.

It is an arithmetic number, because the mean of its divisors is an integer number (14093838).

Almost surely, 2^122430890 is an apocalyptic number.

122430890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122430890 is a deficient number, since it is larger than the sum of its proper divisors (103070518).

122430890 is a wasteful number, since it uses less digits than its factorization.

122430890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284773.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 122430890 is about 11064.8492985671. The cubic root of 122430890 is about 496.5507804838.

The spelling of 122430890 in words is "one hundred twenty-two million, four hundred thirty thousand, eight hundred ninety".