16730090 has 16 divisors (see below), whose sum is σ = 32430888. Its totient is φ = 6177216.

The previous prime is 16730081. The next prime is 16730093. The reversal of 16730090 is 9003761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14969161 + 1760929 = 3869^2 + 1327^2 .

It is a super-2 number, since 2×16730090² = 559791822816200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (16730093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64217 + ... + 64476.

Almost surely, 2^16730090 is an apocalyptic number.

16730090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16730090 is a deficient number, since it is larger than the sum of its proper divisors (15700798).

16730090 is a wasteful number, since it uses less digits than its factorization.

16730090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128713.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 16730090 is about 4090.2432690489. The cubic root of 16730090 is about 255.7600799891.

The spelling of 16730090 in words is "sixteen million, seven hundred thirty thousand, ninety".