1810964 has 12 divisors (see below), whose sum is σ = 3188724. Its totient is φ = 899904.

The previous prime is 1810937. The next prime is 1810967. The reversal of 1810964 is 4690181.

It can be written as a sum of positive squares in 2 ways, for example, as 1716100 + 94864 = 1310^2 + 308^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1810967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (265727).

2^1810964 is an apocalyptic number.

It is an amenable number.

1810964 is a deficient number, since it is larger than the sum of its proper divisors (1377760).

1810964 is a wasteful number, since it uses less digits than its factorization.

1810964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1810964 is about 1345.7206247955. The cubic root of 1810964 is about 121.8905225901.

The spelling of 1810964 in words is "one million, eight hundred ten thousand, nine hundred sixty-four".