1819494 has 24 divisors (see below), whose sum is σ = 3967392. Its totient is φ = 602640.

The previous prime is 1819487. The next prime is 1819513. The reversal of 1819494 is 4949181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4692 + ... + 5064.

It is an arithmetic number, because the mean of its divisors is an integer number (165308).

2^1819494 is an apocalyptic number.

1819494 is an abundant number, since it is smaller than the sum of its proper divisors (2147898).

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

1819494 is a wasteful number, since it uses less digits than its factorization.

1819494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 649 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1819494 is about 1348.8862072095. The cubic root of 1819494 is about 122.0815990880.

The spelling of 1819494 in words is "one million, eight hundred nineteen thousand, four hundred ninety-four".