66424930 has 32 divisors (see below), whose sum is σ = 140470848. Its totient is φ = 22296000.

The previous prime is 66424873. The next prime is 66424951. The reversal of 66424930 is 3942466.

66424930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 21796 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (4389714).

Almost surely, 2^66424930 is an apocalyptic number.

66424930 is an abundant number, since it is smaller than the sum of its proper divisors (74045918).

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

66424930 is a wasteful number, since it uses less digits than its factorization.

66424930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46482.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 66424930 is about 8150.1490783911. The cubic root of 66424930 is about 404.9894423910.

The spelling of 66424930 in words is "sixty-six million, four hundred twenty-four thousand, nine hundred thirty".