16910390 has 24 divisors (see below), whose sum is σ = 35409312. Its totient is φ = 5797680.

The previous prime is 16910389. The next prime is 16910401. The reversal of 16910390 is 9301961.

It is a super-2 number, since 2×16910390² = 571922579904200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16766 + ... + 17745.

It is an arithmetic number, because the mean of its divisors is an integer number (1475388).

Almost surely, 2^16910390 is an apocalyptic number.

16910390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16910390 is an abundant number, since it is smaller than the sum of its proper divisors (18498922).

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

16910390 is a wasteful number, since it uses less digits than its factorization.

16910390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34532 (or 34525 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 16910390 is about 4112.2244588544. The cubic root of 16910390 is about 256.6755736119.

The spelling of 16910390 in words is "sixteen million, nine hundred ten thousand, three hundred ninety".