66842932 has 12 divisors (see below), whose sum is σ = 125973316. Its totient is φ = 30850560.

The previous prime is 66842863. The next prime is 66842959. The reversal of 66842932 is 23924866.

It can be written as a sum of positive squares in 2 ways, for example, as 6687396 + 60155536 = 2586^2 + 7756^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 642669 + ... + 642772.

Almost surely, 2^66842932 is an apocalyptic number.

It is an amenable number.

66842932 is a deficient number, since it is larger than the sum of its proper divisors (59130384).

66842932 is a wasteful number, since it uses less digits than its factorization.

66842932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285458 (or 1285456 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 66842932 is about 8175.7526870619. The cubic root of 66842932 is about 405.8371790028.

The spelling of 66842932 in words is "sixty-six million, eight hundred forty-two thousand, nine hundred thirty-two".