16001642 has 16 divisors (see below), whose sum is σ = 25188864. Its totient is φ = 7614000.

The previous prime is 16001599. The next prime is 16001659. The reversal of 16001642 is 24610061.

It is a happy number.

16001642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1667 + ... + 5897.

It is an arithmetic number, because the mean of its divisors is an integer number (1574304).

Almost surely, 2^16001642 is an apocalyptic number.

16001642 is a deficient number, since it is larger than the sum of its proper divisors (9187222).

16001642 is a wasteful number, since it uses less digits than its factorization.

16001642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 16001642 is about 4000.2052447343. The cubic root of 16001642 is about 251.9928296440.

The spelling of 16001642 in words is "sixteen million, one thousand, six hundred forty-two".