16391030 has 16 divisors (see below), whose sum is σ = 29671920. Its totient is φ = 6519072.

The previous prime is 16391029. The next prime is 16391057. The reversal of 16391030 is 3019361.

It is a junction number, because it is equal to n+sod(n) for n = 16390987 and 16391005.

It is a congruent number.

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, 2789 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (1854495).

Almost surely, 2^16391030 is an apocalyptic number.

16391030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16391030 is a deficient number, since it is larger than the sum of its proper divisors (13280890).

16391030 is a wasteful number, since it uses less digits than its factorization.

16391030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 16391030 is about 4048.5837029756. The cubic root of 16391030 is about 254.0204893881.

The spelling of 16391030 in words is "sixteen million, three hundred ninety-one thousand, thirty".