16001072 has 20 divisors (see below), whose sum is σ = 31378200. Its totient is φ = 7903488.

The previous prime is 16000987. The next prime is 16001081. The reversal of 16001072 is 27010061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16001072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4697 + ... + 7352.

It is an arithmetic number, because the mean of its divisors is an integer number (1568910).

Almost surely, 2^16001072 is an apocalyptic number.

It is an amenable number.

16001072 is a deficient number, since it is larger than the sum of its proper divisors (15377128).

16001072 is a wasteful number, since it uses less digits than its factorization.

16001072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12140 (or 12134 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 16001072 is about 4000.1339977556. The cubic root of 16001072 is about 251.9898375007.

The spelling of 16001072 in words is "sixteen million, one thousand, seventy-two".