122760990 has 48 divisors (see below), whose sum is σ = 348197616. Its totient is φ = 29760000.

The previous prime is 122760977. The next prime is 122760991. The reversal of 122760990 is 99067221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122760991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61011 + ... + 62990.

It is an arithmetic number, because the mean of its divisors is an integer number (7254117).

Almost surely, 2^122760990 is an apocalyptic number.

122760990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122760990 is an abundant number, since it is smaller than the sum of its proper divisors (225436626).

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

122760990 is a wasteful number, since it uses less digits than its factorization.

122760990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124025 (or 124022 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 122760990 is about 11079.7558637363. The cubic root of 122760990 is about 496.9966492223.

The spelling of 122760990 in words is "one hundred twenty-two million, seven hundred sixty thousand, nine hundred ninety".