15222914 has 32 divisors (see below), whose sum is σ = 27724800. Its totient is φ = 6123600.

The previous prime is 15222913. The next prime is 15222917. The reversal of 15222914 is 41922251.

It is a super-2 number, since 2×15222914² = 463474221302792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15222913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39977 + ... + 40355.

It is an arithmetic number, because the mean of its divisors is an integer number (866400).

Almost surely, 2^15222914 is an apocalyptic number.

15222914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15222914 is a deficient number, since it is larger than the sum of its proper divisors (12501886).

15222914 is a wasteful number, since it uses less digits than its factorization.

15222914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its digits is 1440, while the sum is 26.

The square root of 15222914 is about 3901.6552897456. The cubic root of 15222914 is about 247.8368789435.

The spelling of 15222914 in words is "fifteen million, two hundred twenty-two thousand, nine hundred fourteen".