15478648 has 24 divisors (see below), whose sum is σ = 29773440. Its totient is φ = 7544000.

The previous prime is 15478621. The next prime is 15478649. The reversal of 15478648 is 84687451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15478649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12873 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (1240560).

Almost surely, 2^15478648 is an apocalyptic number.

It is an amenable number.

15478648 is a deficient number, since it is larger than the sum of its proper divisors (14294792).

15478648 is a wasteful number, since it uses less digits than its factorization.

15478648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1194 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 15478648 is about 3934.2912957736. The cubic root of 15478648 is about 249.2170062433.

The spelling of 15478648 in words is "fifteen million, four hundred seventy-eight thousand, six hundred forty-eight".