16369990 has 32 divisors (see below), whose sum is σ = 36267840. Its totient is φ = 5180544.

The previous prime is 16369987. The next prime is 16370009. The reversal of 16369990 is 9996361.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8085 + ... + 9904.

It is an arithmetic number, because the mean of its divisors is an integer number (1133370).

Almost surely, 2^16369990 is an apocalyptic number.

16369990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16369990 is an abundant number, since it is smaller than the sum of its proper divisors (19897850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16369990 is a wasteful number, since it uses less digits than its factorization.

16369990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 16369990 is about 4045.9844290358. The cubic root of 16369990 is about 253.9117535012.

The spelling of 16369990 in words is "sixteen million, three hundred sixty-nine thousand, nine hundred ninety".