1872865346 has 24 divisors (see below), whose sum is σ = 3146190012. Its totient is φ = 835234400.

The previous prime is 1872865307. The next prime is 1872865349. The reversal of 1872865346 is 6435682781.

It can be written as a sum of positive squares in 2 ways, for example, as 1794454321 + 78411025 = 42361^2 + 8855^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1872865294 and 1872865303.

It is not an unprimeable number, because it can be changed into a prime (1872865349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60185 + ... + 85836.

Almost surely, 2^1872865346 is an apocalyptic number.

1872865346 is a deficient number, since it is larger than the sum of its proper divisors (1273324666).

1872865346 is a wasteful number, since it uses less digits than its factorization.

1872865346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146098 (or 146087 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 1872865346 is about 43276.6143084230. The cubic root of 1872865346 is about 1232.6379030689.

The spelling of 1872865346 in words is "one billion, eight hundred seventy-two million, eight hundred sixty-five thousand, three hundred forty-six".