16280042 has 8 divisors (see below), whose sum is σ = 24454596. Its totient is φ = 8128512.

The previous prime is 16280041. The next prime is 16280051. The reversal of 16280042 is 24008261.

It can be written as a sum of positive squares in 2 ways, for example, as 14508481 + 1771561 = 3809^2 + 1331^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16280041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3863 + ... + 6890.

Almost surely, 2^16280042 is an apocalyptic number.

16280042 is a deficient number, since it is larger than the sum of its proper divisors (8174554).

16280042 is a wasteful number, since it uses less digits than its factorization.

16280042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 16280042 is about 4034.8534050198. The cubic root of 16280042 is about 253.4458437610.

The spelling of 16280042 in words is "sixteen million, two hundred eighty thousand, forty-two".