122443090 has 32 divisors (see below), whose sum is σ = 274783104. Its totient is φ = 38163840.

The previous prime is 122443073. The next prime is 122443093. The reversal of 122443090 is 90344221.

It is not an unprimeable number, because it can be changed into a prime (122443093) by changing a digit.

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, 78739 + ... + 80278.

It is an arithmetic number, because the mean of its divisors is an integer number (8586972).

Almost surely, 2^122443090 is an apocalyptic number.

122443090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122443090 is an abundant number, since it is smaller than the sum of its proper divisors (152340014).

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

122443090 is a wasteful number, since it uses less digits than its factorization.

122443090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159042.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 122443090 is about 11065.4005801869. The cubic root of 122443090 is about 496.5672733757.

The spelling of 122443090 in words is "one hundred twenty-two million, four hundred forty-three thousand, ninety".