15048720 has 80 divisors (see below), whose sum is σ = 51841920. Its totient is φ = 4012416.

The previous prime is 15048713. The next prime is 15048749. The reversal of 15048720 is 2784051.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1324 + ... + 5643.

It is an arithmetic number, because the mean of its divisors is an integer number (648024).

Almost surely, 2^15048720 is an apocalyptic number.

15048720 is a gapful number since it is divisible by the number (10) 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 15048720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25920960).

15048720 is an abundant number, since it is smaller than the sum of its proper divisors (36793200).

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

15048720 is a wasteful number, since it uses less digits than its factorization.

15048720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989 (or 6977 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 15048720 is about 3879.2679721824. The cubic root of 15048720 is about 246.8879274329.

The spelling of 15048720 in words is "fifteen million, forty-eight thousand, seven hundred twenty".