15472320 has 112 divisors (see below), whose sum is σ = 50035968. Its totient is φ = 4049920.

The previous prime is 15472313. The next prime is 15472321. The reversal of 15472320 is 2327451.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (15472321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68047 + ... + 68273.

Almost surely, 2^15472320 is an apocalyptic number.

15472320 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 15472320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25017984).

15472320 is an abundant number, since it is smaller than the sum of its proper divisors (34563648).

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

15472320 is a wasteful number, since it uses less digits than its factorization.

15472320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 15472320 is about 3933.4870026479. The cubic root of 15472320 is about 249.1830398794.

15472320 divided by its sum of digits (24) gives a triangular number (644680 = T₁₁₃₅).

Adding to 15472320 its reverse (2327451), we get a palindrome (17799771).

The spelling of 15472320 in words is "fifteen million, four hundred seventy-two thousand, three hundred twenty".