15423968 has 48 divisors (see below), whose sum is σ = 35661024. Its totient is φ = 6428160.

The previous prime is 15423959. The next prime is 15423977. The reversal of 15423968 is 86932451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15423959) and next prime (15423977).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7358 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (742938).

Almost surely, 2^15423968 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 15423968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17830512).

15423968 is an abundant number, since it is smaller than the sum of its proper divisors (20237056).

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

15423968 is a wasteful number, since it uses less digits than its factorization.

15423968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1907 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 15423968 is about 3927.3359927564. The cubic root of 15423968 is about 248.9231979819.

The spelling of 15423968 in words is "fifteen million, four hundred twenty-three thousand, nine hundred sixty-eight".