15222294 has 12 divisors (see below), whose sum is σ = 32981676. Its totient is φ = 5074092.

The previous prime is 15222257. The next prime is 15222323. The reversal of 15222294 is 49222251.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422824 + ... + 422859.

It is an arithmetic number, because the mean of its divisors is an integer number (2748473).

Almost surely, 2^15222294 is an apocalyptic number.

15222294 is an abundant number, since it is smaller than the sum of its proper divisors (17759382).

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

15222294 is a wasteful number, since it uses less digits than its factorization.

15222294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845691 (or 845688 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 15222294 is about 3901.5758354798. The cubic root of 15222294 is about 247.8335142581.

The spelling of 15222294 in words is "fifteen million, two hundred twenty-two thousand, two hundred ninety-four".