15220080 has 60 divisors (see below), whose sum is σ = 51116520. Its totient is φ = 4058496.

The previous prime is 15220069. The next prime is 15220081. The reversal of 15220080 is 8002251.

15220080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15220081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9850 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (851942).

Almost surely, 2^15220080 is an apocalyptic number.

15220080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15220080 is an abundant number, since it is smaller than the sum of its proper divisors (35896440).

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

15220080 is a wasteful number, since it uses less digits than its factorization.

15220080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21158 (or 21149 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 15220080 is about 3901.2920936531. The cubic root of 15220080 is about 247.8214983293.

The spelling of 15220080 in words is "fifteen million, two hundred twenty thousand, eighty".