16819012 has 24 divisors (see below), whose sum is σ = 34211520. Its totient is φ = 7085280.

The previous prime is 16818983. The next prime is 16819013. The reversal of 16819012 is 21091861.

It is a happy number.

It is a super-2 number, since 2×16819012² = 565758329312288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (16819013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3439 + ... + 6742.

It is an arithmetic number, because the mean of its divisors is an integer number (1425480).

Almost surely, 2^16819012 is an apocalyptic number.

It is an amenable number.

16819012 is an abundant number, since it is smaller than the sum of its proper divisors (17392508).

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

16819012 is a wasteful number, since it uses less digits than its factorization.

16819012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251 (or 10249 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 16819012 is about 4101.0988771304. The cubic root of 16819012 is about 256.2124091597.

The spelling of 16819012 in words is "sixteen million, eight hundred nineteen thousand, twelve".