122664474 has 48 divisors (see below), whose sum is σ = 279631872. Its totient is φ = 38785824.

The previous prime is 122664449. The next prime is 122664527. The reversal of 122664474 is 474466221.

122664474 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 644 + 7 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51412 + ... + 53744.

It is an arithmetic number, because the mean of its divisors is an integer number (5825664).

Almost surely, 2^122664474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122664474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139815936).

122664474 is an abundant number, since it is smaller than the sum of its proper divisors (156967398).

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

122664474 is a wasteful number, since it uses less digits than its factorization.

122664474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2488 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 122664474 is about 11075.3994961807. The cubic root of 122664474 is about 496.8663670507.

The spelling of 122664474 in words is "one hundred twenty-two million, six hundred sixty-four thousand, four hundred seventy-four".