1819066 has 12 divisors (see below), whose sum is σ = 2801466. Its totient is φ = 885560.

The previous prime is 1819063. The next prime is 1819067. The reversal of 1819066 is 6609181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1390041 + 429025 = 1179^2 + 655^2 .

It is a super-2 number, since 2×1819066² = 6618002224712, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1819061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13821 + ... + 13951.

2^1819066 is an apocalyptic number.

1819066 is a deficient number, since it is larger than the sum of its proper divisors (982400).

1819066 is an equidigital number, since it uses as much as digits as its factorization.

1819066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1819066 is about 1348.7275484693. The cubic root of 1819066 is about 122.0720259096.

The spelling of 1819066 in words is "one million, eight hundred nineteen thousand, sixty-six".