1812265732 has 6 divisors (see below), whose sum is σ = 3171465038. Its totient is φ = 906132864.

The previous prime is 1812265727. The next prime is 1812265747. The reversal of 1812265732 is 2375622181.

It can be written as a sum of positive squares in only one way, i.e., 1355417856 + 456847876 = 36816^2 + 21374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1812265691 and 1812265700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226533213 + ... + 226533220.

Almost surely, 2^1812265732 is an apocalyptic number.

It is an amenable number.

1812265732 is a deficient number, since it is larger than the sum of its proper divisors (1359199306).

1812265732 is a wasteful number, since it uses less digits than its factorization.

1812265732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453066437 (or 453066435 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 1812265732 is about 42570.7144877790. The cubic root of 1812265732 is about 1219.1972081295.

The spelling of 1812265732 in words is "one billion, eight hundred twelve million, two hundred sixty-five thousand, seven hundred thirty-two".