1813434 has 16 divisors (see below), whose sum is σ = 4145088. Its totient is φ = 518112.

The previous prime is 1813429. The next prime is 1813447. The reversal of 1813434 is 4343181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21547 + ... + 21630.

It is an arithmetic number, because the mean of its divisors is an integer number (259068).

2^1813434 is an apocalyptic number.

1813434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1813434 is an abundant number, since it is smaller than the sum of its proper divisors (2331654).

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

1813434 is a wasteful number, since it uses less digits than its factorization.

1813434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43189.

The product of its digits is 1152, while the sum is 24.

The square root of 1813434 is about 1346.6380359993. The cubic root of 1813434 is about 121.9459134973.

The spelling of 1813434 in words is "one million, eight hundred thirteen thousand, four hundred thirty-four".