15213480 has 64 divisors (see below), whose sum is σ = 46146240. Its totient is φ = 4012032.

The previous prime is 15213479. The next prime is 15213481. The reversal of 15213480 is 8431251.

It is an interprime number because it is at equal distance from previous prime (15213479) and next prime (15213481).

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

It is a self number, because there is not a number n which added to its sum of digits gives 15213480.

It is not an unprimeable number, because it can be changed into a prime (15213481) 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, 10987 + ... + 12293.

It is an arithmetic number, because the mean of its divisors is an integer number (721035).

Almost surely, 2^15213480 is an apocalyptic number.

15213480 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 15213480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23073120).

15213480 is an abundant number, since it is smaller than the sum of its proper divisors (30932760).

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

15213480 is a wasteful number, since it uses less digits than its factorization.

15213480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 15213480 is about 3900.4461283294. The cubic root of 15213480 is about 247.7856715713.

The spelling of 15213480 in words is "fifteen million, two hundred thirteen thousand, four hundred eighty".