15228422 has 16 divisors (see below), whose sum is σ = 25779600. Its totient is φ = 6683040.

The previous prime is 15228419. The next prime is 15228449. The reversal of 15228422 is 22482251.

It is a super-2 number, since 2×15228422² = 463809673220168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15228391 and 15228400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11297 + ... + 12572.

It is an arithmetic number, because the mean of its divisors is an integer number (1611225).

Almost surely, 2^15228422 is an apocalyptic number.

15228422 is a deficient number, since it is larger than the sum of its proper divisors (10551178).

15228422 is a wasteful number, since it uses less digits than its factorization.

15228422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911.

The product of its digits is 2560, while the sum is 26.

The square root of 15228422 is about 3902.3610801667. The cubic root of 15228422 is about 247.8667663646.

The spelling of 15228422 in words is "fifteen million, two hundred twenty-eight thousand, four hundred twenty-two".