15873420 has 48 divisors (see below), whose sum is σ = 45184608. Its totient is φ = 4162560.

The previous prime is 15873413. The next prime is 15873443. The reversal of 15873420 is 2437851.

15873420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1492 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (941346).

Almost surely, 2^15873420 is an apocalyptic number.

15873420 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 15873420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22592304).

15873420 is an abundant number, since it is smaller than the sum of its proper divisors (29311188).

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

15873420 is a wasteful number, since it uses less digits than its factorization.

15873420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 15873420 is about 3984.1460816592. The cubic root of 15873420 is about 251.3179465252.

The spelling of 15873420 in words is "fifteen million, eight hundred seventy-three thousand, four hundred twenty".