16391002 has 8 divisors (see below), whose sum is σ = 25379712. Its totient is φ = 7931100.

The previous prime is 16390993. The next prime is 16391017. The reversal of 16391002 is 20019361.

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

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, 132124 + ... + 132247.

It is an arithmetic number, because the mean of its divisors is an integer number (3172464).

Almost surely, 2^16391002 is an apocalyptic number.

16391002 is a deficient number, since it is larger than the sum of its proper divisors (8988710).

16391002 is a wasteful number, since it uses less digits than its factorization.

16391002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264404.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 16391002 is about 4048.5802449748. The cubic root of 16391002 is about 254.0203447444.

The spelling of 16391002 in words is "sixteen million, three hundred ninety-one thousand, two".