15222380 has 12 divisors (see below), whose sum is σ = 31967040. Its totient is φ = 6088944.

The previous prime is 15222379. The next prime is 15222391. The reversal of 15222380 is 8322251.

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 3 ways as a sum of consecutive naturals, for example, 380540 + ... + 380579.

It is an arithmetic number, because the mean of its divisors is an integer number (2663920).

Almost surely, 2^15222380 is an apocalyptic number.

15222380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15222380 is an abundant number, since it is smaller than the sum of its proper divisors (16744660).

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

15222380 is a wasteful number, since it uses less digits than its factorization.

15222380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761128 (or 761126 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 15222380 is about 3901.5868566520. The cubic root of 15222380 is about 247.8339809780.

The spelling of 15222380 in words is "fifteen million, two hundred twenty-two thousand, three hundred eighty".