15012020 has 48 divisors (see below), whose sum is σ = 33929280. Its totient is φ = 5558784.

The previous prime is 15012013. The next prime is 15012043. The reversal of 15012020 is 2021051.

It is a junction number, because it is equal to n+sod(n) for n = 15011992 and 15012010.

It is a congruent number.

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, 22451 + ... + 23109.

It is an arithmetic number, because the mean of its divisors is an integer number (706860).

Almost surely, 2^15012020 is an apocalyptic number.

15012020 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 15012020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16964640).

15012020 is an abundant number, since it is smaller than the sum of its proper divisors (18917260).

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

15012020 is a wasteful number, since it uses less digits than its factorization.

15012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 15012020 is about 3874.5348107870. The cubic root of 15012020 is about 246.6870651096.

Adding to 15012020 its reverse (2021051), we get a palindrome (17033071).

The spelling of 15012020 in words is "fifteen million, twelve thousand, twenty".