1813935044 has 6 divisors (see below), whose sum is σ = 3174386334. Its totient is φ = 906967520.

The previous prime is 1813935029. The next prime is 1813935047. The reversal of 1813935044 is 4405393181.

It can be written as a sum of positive squares in only one way, i.e., 1366189444 + 447745600 = 36962^2 + 21160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1813934989 and 1813935007.

It is not an unprimeable number, because it can be changed into a prime (1813935047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226741877 + ... + 226741884.

It is an arithmetic number, because the mean of its divisors is an integer number (529064389).

Almost surely, 2^1813935044 is an apocalyptic number.

It is an amenable number.

1813935044 is a deficient number, since it is larger than the sum of its proper divisors (1360451290).

1813935044 is a wasteful number, since it uses less digits than its factorization.

1813935044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453483765 (or 453483763 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1813935044 is about 42590.3163172099. The cubic root of 1813935044 is about 1219.5714350654.

The spelling of 1813935044 in words is "one billion, eight hundred thirteen million, nine hundred thirty-five thousand, forty-four".