16389746 has 16 divisors (see below), whose sum is σ = 25346304. Its totient is φ = 7944384.

The previous prime is 16389743. The next prime is 16389749. The reversal of 16389746 is 64798361.

It is an interprime number because it is at equal distance from previous prime (16389743) and next prime (16389749).

It is a junction number, because it is equal to n+sod(n) for n = 16389697 and 16389706.

It is not an unprimeable number, because it can be changed into a prime (16389743) 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 7 ways as a sum of consecutive naturals, for example, 9851 + ... + 11393.

It is an arithmetic number, because the mean of its divisors is an integer number (1584144).

Almost surely, 2^16389746 is an apocalyptic number.

16389746 is a deficient number, since it is larger than the sum of its proper divisors (8956558).

16389746 is a wasteful number, since it uses less digits than its factorization.

16389746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705.

The product of its digits is 217728, while the sum is 44.

The square root of 16389746 is about 4048.4251258977. The cubic root of 16389746 is about 254.0138562718.

The spelling of 16389746 in words is "sixteen million, three hundred eighty-nine thousand, seven hundred forty-six".