15960320 has 72 divisors (see below), whose sum is σ = 39379704. Its totient is φ = 6193152.

The previous prime is 15960313. The next prime is 15960341. The reversal of 15960320 is 2306951.

It can be written as a sum of positive squares in 4 ways, for example, as 2768896 + 13191424 = 1664^2 + 3632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15960320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47192 + ... + 47528.

Almost surely, 2^15960320 is an apocalyptic number.

15960320 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 15960320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19689852).

15960320 is an abundant number, since it is smaller than the sum of its proper divisors (23419384).

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

15960320 is an equidigital number, since it uses as much as digits as its factorization.

15960320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 15960320 is about 3995.0369209808. The cubic root of 15960320 is about 251.7757305940.

The spelling of 15960320 in words is "fifteen million, nine hundred sixty thousand, three hundred twenty".