16000042 has 16 divisors (see below), whose sum is σ = 25629120. Its totient is φ = 7473312.

The previous prime is 15999989. The next prime is 16000057. The reversal of 16000042 is 24000061.

16000042 is a modest number, since divided by 42 gives 16 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 15999986 and 16000031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067 + ... + 6022.

It is an arithmetic number, because the mean of its divisors is an integer number (1601820).

Almost surely, 2^16000042 is an apocalyptic number.

16000042 is a deficient number, since it is larger than the sum of its proper divisors (9629078).

16000042 is a wasteful number, since it uses less digits than its factorization.

16000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 16000042 is about 4000.0052499966. The cubic root of 16000042 is about 251.9844304650.

The spelling of 16000042 in words is "sixteen million, forty-two", and thus it is an aban number and an uban number.