15478968 has 64 divisors (see below), whose sum is σ = 40487040. Its totient is φ = 4927104.

The previous prime is 15478963. The next prime is 15478973. The reversal of 15478968 is 86987451.

It is an interprime number because it is at equal distance from previous prime (15478963) and next prime (15478973).

Its product of digits (483840) is a multiple of the sum of its prime divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15478961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54555 + ... + 54837.

It is an arithmetic number, because the mean of its divisors is an integer number (632610).

Almost surely, 2^15478968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15478968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20243520).

15478968 is an abundant number, since it is smaller than the sum of its proper divisors (25008072).

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

15478968 is a wasteful number, since it uses less digits than its factorization.

15478968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 384 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 15478968 is about 3934.3319636248. The cubic root of 15478968 is about 249.2187236390.

The spelling of 15478968 in words is "fifteen million, four hundred seventy-eight thousand, nine hundred sixty-eight".