1812710434 has 4 divisors (see below), whose sum is σ = 2719065654. Its totient is φ = 906355216.

The previous prime is 1812710423. The next prime is 1812710441. The reversal of 1812710434 is 4340172181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4340172181 = 8209 ⋅528709.

It can be written as a sum of positive squares in only one way, i.e., 1177519225 + 635191209 = 34315^2 + 25203^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1812710396 and 1812710405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453177607 + ... + 453177610.

Almost surely, 2^1812710434 is an apocalyptic number.

1812710434 is a deficient number, since it is larger than the sum of its proper divisors (906355220).

1812710434 is an equidigital number, since it uses as much as digits as its factorization.

1812710434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906355219.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1812710434 is about 42575.9372650797. The cubic root of 1812710434 is about 1219.2969240239.

It can be divided in two parts, 18127 and 10434, that added together give a 4-th power (28561 = 13⁴).

The spelling of 1812710434 in words is "one billion, eight hundred twelve million, seven hundred ten thousand, four hundred thirty-four".