122774442 has 64 divisors (see below), whose sum is σ = 298577664. Its totient is φ = 32855040.

The previous prime is 122774423. The next prime is 122774461. The reversal of 122774442 is 244477221.

It is an interprime number because it is at equal distance from previous prime (122774423) and next prime (122774461).

It is a super-2 number, since 2×122774442² = 30147127216822728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266092 + ... + 266552.

It is an arithmetic number, because the mean of its divisors is an integer number (4665276).

Almost surely, 2^122774442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122774442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149288832).

122774442 is an abundant number, since it is smaller than the sum of its proper divisors (175803222).

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

122774442 is a wasteful number, since it uses less digits than its factorization.

122774442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its digits is 25088, while the sum is 33.

The square root of 122774442 is about 11080.3629001942. The cubic root of 122774442 is about 497.0148019888.

The spelling of 122774442 in words is "one hundred twenty-two million, seven hundred seventy-four thousand, four hundred forty-two".