1868646932 has 6 divisors (see below), whose sum is σ = 3270132138. Its totient is φ = 934323464.

The previous prime is 1868646931. The next prime is 1868646943. The reversal of 1868646932 is 2396468681.

It can be written as a sum of positive squares in only one way, i.e., 1434591376 + 434055556 = 37876^2 + 20834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868646931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233580863 + ... + 233580870.

It is an arithmetic number, because the mean of its divisors is an integer number (545022023).

Almost surely, 2^1868646932 is an apocalyptic number.

It is an amenable number.

1868646932 is a deficient number, since it is larger than the sum of its proper divisors (1401485206).

1868646932 is a wasteful number, since it uses less digits than its factorization.

1868646932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467161737 (or 467161735 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The square root of 1868646932 is about 43227.8490327705. The cubic root of 1868646932 is about 1231.7117489529.

The spelling of 1868646932 in words is "one billion, eight hundred sixty-eight million, six hundred forty-six thousand, nine hundred thirty-two".