66094428 has 24 divisors (see below), whose sum is σ = 156524032. Its totient is φ = 21702384.

The previous prime is 66094421. The next prime is 66094429. The reversal of 66094428 is 82449066.

66094428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66094421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40300 + ... + 41907.

Almost surely, 2^66094428 is an apocalyptic number.

It is an amenable number.

66094428 is an abundant number, since it is smaller than the sum of its proper divisors (90429604).

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

66094428 is a wasteful number, since it uses less digits than its factorization.

66094428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82281 (or 82279 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 66094428 is about 8129.8479690582. The cubic root of 66094428 is about 404.3166406308.

The spelling of 66094428 in words is "sixty-six million, ninety-four thousand, four hundred twenty-eight".