66430942 has 16 divisors (see below), whose sum is σ = 102824640. Its totient is φ = 32172192.

The previous prime is 66430933. The next prime is 66430957. The reversal of 66430942 is 24903466.

It is a junction number, because it is equal to n+sod(n) for n = 66430898 and 66430907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4408 + ... + 12340.

It is an arithmetic number, because the mean of its divisors is an integer number (6426540).

Almost surely, 2^66430942 is an apocalyptic number.

66430942 is a deficient number, since it is larger than the sum of its proper divisors (36393698).

66430942 is a wasteful number, since it uses less digits than its factorization.

66430942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067.

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

The square root of 66430942 is about 8150.5178976553. The cubic root of 66430942 is about 405.0016603092.

The spelling of 66430942 in words is "sixty-six million, four hundred thirty thousand, nine hundred forty-two".