921434132 has 6 divisors (see below), whose sum is σ = 1612509738. Its totient is φ = 460717064.

The previous prime is 921434113. The next prime is 921434191. The reversal of 921434132 is 231434129.

It can be written as a sum of positive squares in only one way, i.e., 842508676 + 78925456 = 29026^2 + 8884^2 .

It is a super-2 number, since 2×921434132² = 1698081719229186848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 921434095 and 921434104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115179263 + ... + 115179270.

It is an arithmetic number, because the mean of its divisors is an integer number (268751623).

Almost surely, 2^921434132 is an apocalyptic number.

It is an amenable number.

921434132 is a deficient number, since it is larger than the sum of its proper divisors (691075606).

921434132 is a wasteful number, since it uses less digits than its factorization.

921434132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230358537 (or 230358535 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 921434132 is about 30355.1335361912. The cubic root of 921434132 is about 973.0939336893.

The spelling of 921434132 in words is "nine hundred twenty-one million, four hundred thirty-four thousand, one hundred thirty-two".