15247020 has 48 divisors (see below), whose sum is σ = 42981120. Its totient is φ = 4038336.

The previous prime is 15247013. The next prime is 15247031. The reversal of 15247020 is 2074251.

15247020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9001 + ... + 10559.

It is an arithmetic number, because the mean of its divisors is an integer number (895440).

Almost surely, 2^15247020 is an apocalyptic number.

15247020 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 15247020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21490560).

15247020 is an abundant number, since it is smaller than the sum of its proper divisors (27734100).

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

15247020 is a wasteful number, since it uses less digits than its factorization.

15247020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 15247020 is about 3904.7432694097. The cubic root of 15247020 is about 247.9676293164.

The spelling of 15247020 in words is "fifteen million, two hundred forty-seven thousand, twenty".