15246420 has 96 divisors (see below), whose sum is σ = 50405376. Its totient is φ = 3369600.

The previous prime is 15246409. The next prime is 15246437. The reversal of 15246420 is 2464251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12435 + ... + 13605.

It is an arithmetic number, because the mean of its divisors is an integer number (525056).

Almost surely, 2^15246420 is an apocalyptic number.

15246420 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 15246420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25202688).

15246420 is an abundant number, since it is smaller than the sum of its proper divisors (35158956).

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

15246420 is a wasteful number, since it uses less digits than its factorization.

15246420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 15246420 is about 3904.6664390188. Note that the first 3 decimals coincide. The cubic root of 15246420 is about 247.9643766036.

The spelling of 15246420 in words is "fifteen million, two hundred forty-six thousand, four hundred twenty".