1801667332 has 6 divisors (see below), whose sum is σ = 3152917838. Its totient is φ = 900833664.

The previous prime is 1801667321. The next prime is 1801667333. The reversal of 1801667332 is 2337661081.

It can be written as a sum of positive squares in only one way, i.e., 1584517636 + 217149696 = 39806^2 + 14736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1801667291 and 1801667300.

It is not an unprimeable number, because it can be changed into a prime (1801667333) by changing a digit.

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, 225208413 + ... + 225208420.

Almost surely, 2^1801667332 is an apocalyptic number.

It is an amenable number.

1801667332 is a deficient number, since it is larger than the sum of its proper divisors (1351250506).

1801667332 is a wasteful number, since it uses less digits than its factorization.

1801667332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450416837 (or 450416835 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1801667332 is about 42446.0520190041. The cubic root of 1801667332 is about 1216.8158776489.

The spelling of 1801667332 in words is "one billion, eight hundred one million, six hundred sixty-seven thousand, three hundred thirty-two".