16812290 has 16 divisors (see below), whose sum is σ = 33013440. Its totient is φ = 6113520.

The previous prime is 16812281. The next prime is 16812307. The reversal of 16812290 is 9221861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76310 + ... + 76529.

It is an arithmetic number, because the mean of its divisors is an integer number (2063340).

Almost surely, 2^16812290 is an apocalyptic number.

16812290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16812290 is a deficient number, since it is larger than the sum of its proper divisors (16201150).

16812290 is a wasteful number, since it uses less digits than its factorization.

16812290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152857.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 16812290 is about 4100.2792587823. The cubic root of 16812290 is about 256.1782714170.

The spelling of 16812290 in words is "sixteen million, eight hundred twelve thousand, two hundred ninety".