16389190 has 48 divisors (see below), whose sum is σ = 32227632. Its totient is φ = 5997056.

The previous prime is 16389167. The next prime is 16389193. The reversal of 16389190 is 9198361.

It is a super-2 number, since 2×16389190² = 537211097712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16389193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153117 + ... + 153223.

It is an arithmetic number, because the mean of its divisors is an integer number (671409).

Almost surely, 2^16389190 is an apocalyptic number.

16389190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16389190 is a deficient number, since it is larger than the sum of its proper divisors (15838442).

16389190 is a wasteful number, since it uses less digits than its factorization.

16389190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 16389190 is about 4048.3564566377. The cubic root of 16389190 is about 254.0109838803.

The spelling of 16389190 in words is "sixteen million, three hundred eighty-nine thousand, one hundred ninety".