122347290 has 32 divisors (see below), whose sum is σ = 316221696. Its totient is φ = 30116160.

The previous prime is 122347279. The next prime is 122347301. The reversal of 122347290 is 92743221.

It is an interprime number because it is at equal distance from previous prime (122347279) and next prime (122347301).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156466 + ... + 157245.

It is an arithmetic number, because the mean of its divisors is an integer number (9881928).

Almost surely, 2^122347290 is an apocalyptic number.

122347290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122347290 is an abundant number, since it is smaller than the sum of its proper divisors (193874406).

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

122347290 is a wasteful number, since it uses less digits than its factorization.

122347290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313734.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 122347290 is about 11061.0709246438. The cubic root of 122347290 is about 496.4377341294.

The spelling of 122347290 in words is "one hundred twenty-two million, three hundred forty-seven thousand, two hundred ninety".