122649488 has 40 divisors (see below), whose sum is σ = 257983488. Its totient is φ = 56149632.

The previous prime is 122649481. The next prime is 122649493. The reversal of 122649488 is 884946221.

It is not an unprimeable number, because it can be changed into a prime (122649481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24095 + ... + 28737.

Almost surely, 2^122649488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122649488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128991744).

122649488 is an abundant number, since it is smaller than the sum of its proper divisors (135334000).

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

122649488 is a wasteful number, since it uses less digits than its factorization.

122649488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791 (or 4785 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 122649488 is about 11074.7229310715. The cubic root of 122649488 is about 496.8461320623.

The spelling of 122649488 in words is "one hundred twenty-two million, six hundred forty-nine thousand, four hundred eighty-eight".