15000042 has 16 divisors (see below), whose sum is σ = 30509280. Its totient is φ = 4915152.

The previous prime is 15000031. The next prime is 15000053. The reversal of 15000042 is 24000051.

It is an interprime number because it is at equal distance from previous prime (15000031) and next prime (15000053).

It is a junction number, because it is equal to n+sod(n) for n = 14999991 and 15000027.

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, 20833 + ... + 21540.

It is an arithmetic number, because the mean of its divisors is an integer number (1906830).

Almost surely, 2^15000042 is an apocalyptic number.

15000042 is an abundant number, since it is smaller than the sum of its proper divisors (15509238).

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

15000042 is a wasteful number, since it uses less digits than its factorization.

15000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42437.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 15000042 is about 3872.9887683803. The cubic root of 15000042 is about 246.6214376126.

Adding to 15000042 its reverse (24000051), we get a palindrome (39000093).

Subtracting 15000042 from its reverse (24000051), we obtain a palindrome (9000009).

The spelling of 15000042 in words is "fifteen million, forty-two", and thus it is an aban number and an uban number.