15381480 has 64 divisors (see below), whose sum is σ = 48159360. Its totient is φ = 3922688.

The previous prime is 15381479. The next prime is 15381493. The reversal of 15381480 is 8418351.

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, 27 + ... + 5546.

It is an arithmetic number, because the mean of its divisors is an integer number (752490).

Almost surely, 2^15381480 is an apocalyptic number.

15381480 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 15381480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24079680).

15381480 is an abundant number, since it is smaller than the sum of its proper divisors (32777880).

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

15381480 is a wasteful number, since it uses less digits than its factorization.

15381480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610 (or 5606 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 15381480 is about 3921.9229977143. The cubic root of 15381480 is about 248.6944203830.

The spelling of 15381480 in words is "fifteen million, three hundred eighty-one thousand, four hundred eighty".