15381942 has 8 divisors (see below), whose sum is σ = 30763896. Its totient is φ = 5127312.

The previous prime is 15381913. The next prime is 15381967. The reversal of 15381942 is 24918351.

It is a sphenic number, since it is the product of 3 distinct primes.

15381942 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281823 + ... + 1281834.

It is an arithmetic number, because the mean of its divisors is an integer number (3845487).

Almost surely, 2^15381942 is an apocalyptic number.

15381942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15381942 is a wasteful number, since it uses less digits than its factorization.

15381942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563662.

The product of its digits is 8640, while the sum is 33.

The square root of 15381942 is about 3921.9818969496. The cubic root of 15381942 is about 248.6969102966.

The spelling of 15381942 in words is "fifteen million, three hundred eighty-one thousand, nine hundred forty-two".