16420042 has 8 divisors (see below), whose sum is σ = 24793632. Its totient is φ = 8155500.

The previous prime is 16420031. The next prime is 16420043. The reversal of 16420042 is 24002461.

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 (16420043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26884 + ... + 27487.

It is an arithmetic number, because the mean of its divisors is an integer number (3099204).

Almost surely, 2^16420042 is an apocalyptic number.

16420042 is a deficient number, since it is larger than the sum of its proper divisors (8373590).

16420042 is a wasteful number, since it uses less digits than its factorization.

16420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54524.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 16420042 is about 4052.1651002890. The cubic root of 16420042 is about 254.1702725040.

The spelling of 16420042 in words is "sixteen million, four hundred twenty thousand, forty-two".