16045990 has 16 divisors (see below), whose sum is σ = 29879280. Its totient is φ = 6196960.

The previous prime is 16045979. The next prime is 16045993. The reversal of 16045990 is 9954061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16045993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27376 + ... + 27955.

It is an arithmetic number, because the mean of its divisors is an integer number (1867455).

Almost surely, 2^16045990 is an apocalyptic number.

16045990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16045990 is a deficient number, since it is larger than the sum of its proper divisors (13833290).

16045990 is a wasteful number, since it uses less digits than its factorization.

16045990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55367.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 16045990 is about 4005.7446249106. The cubic root of 16045990 is about 252.2254113965.

The spelling of 16045990 in words is "sixteen million, forty-five thousand, nine hundred ninety".