16002090 has 128 divisors (see below), whose sum is σ = 47416320. Its totient is φ = 3815424.

The previous prime is 16002067. The next prime is 16002101. The reversal of 16002090 is 9020061.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 164922 + ... + 165018.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^16002090 is an apocalyptic number.

16002090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16002090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23708160).

16002090 is an abundant number, since it is smaller than the sum of its proper divisors (31414230).

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

16002090 is a wasteful number, since it uses less digits than its factorization.

16002090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 16002090 is about 4000.2612414691. The cubic root of 16002090 is about 251.9951813138.

The spelling of 16002090 in words is "sixteen million, two thousand, ninety".