122487660 has 96 divisors (see below), whose sum is σ = 384753600. Its totient is φ = 32348160.

The previous prime is 122487647. The next prime is 122487679. The reversal of 122487660 is 66784221.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 57820 + ... + 59900.

It is an arithmetic number, because the mean of its divisors is an integer number (4007850).

Almost surely, 2^122487660 is an apocalyptic number.

122487660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122487660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192376800).

122487660 is an abundant number, since it is smaller than the sum of its proper divisors (262265940).

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

122487660 is a wasteful number, since it uses less digits than its factorization.

122487660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208 (or 2200 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 122487660 is about 11067.4143321735. The cubic root of 122487660 is about 496.6275171960.

The spelling of 122487660 in words is "one hundred twenty-two million, four hundred eighty-seven thousand, six hundred sixty".