66292940 has 48 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 22648512.

The previous prime is 66292921. The next prime is 66292987. The reversal of 66292940 is 4929266.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 66292894 and 66292903.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49601 + ... + 50919.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^66292940 is an apocalyptic number.

It is an amenable number.

66292940 is an abundant number, since it is smaller than the sum of its proper divisors (93374260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66292940 is a wasteful number, since it uses less digits than its factorization.

66292940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 66292940 is about 8142.0476539996. The cubic root of 66292940 is about 404.7210190679.

The spelling of 66292940 in words is "sixty-six million, two hundred ninety-two thousand, nine hundred forty".