15222792 has 64 divisors (see below), whose sum is σ = 41489280. Its totient is φ = 4626432.

The previous prime is 15222791. The next prime is 15222833. The reversal of 15222792 is 29722251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15222791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30013 + ... + 30515.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 2^15222792 is an apocalyptic number.

15222792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15222792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20744640).

15222792 is an abundant number, since it is smaller than the sum of its proper divisors (26266488).

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

15222792 is a wasteful number, since it uses less digits than its factorization.

15222792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 618 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 15222792 is about 3901.6396553244. The cubic root of 15222792 is about 247.8362168675.

It can be divided in two parts, 1522 and 2792, that multiplied together give a palindrome (4249424).

The spelling of 15222792 in words is "fifteen million, two hundred twenty-two thousand, seven hundred ninety-two".