16380990 has 24 divisors (see below), whose sum is σ = 42590808. Its totient is φ = 4368240.

The previous prime is 16380971. The next prime is 16381003. The reversal of 16380990 is 9908361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90916 + ... + 91095.

It is an arithmetic number, because the mean of its divisors is an integer number (1774617).

Almost surely, 2^16380990 is an apocalyptic number.

16380990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16380990 is an abundant number, since it is smaller than the sum of its proper divisors (26209818).

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

16380990 is a wasteful number, since it uses less digits than its factorization.

16380990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182024 (or 182021 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16380990 is about 4047.3435732589. The cubic root of 16380990 is about 253.9686137257.

The spelling of 16380990 in words is "sixteen million, three hundred eighty thousand, nine hundred ninety".