66448230 has 16 divisors (see below), whose sum is σ = 159475824. Its totient is φ = 17719520.

The previous prime is 66448229. The next prime is 66448231. The reversal of 66448230 is 3284466.

It is an interprime number because it is at equal distance from previous prime (66448229) and next prime (66448231).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 66448191 and 66448200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66448231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107441 + ... + 1107500.

It is an arithmetic number, because the mean of its divisors is an integer number (9967239).

Almost surely, 2^66448230 is an apocalyptic number.

66448230 is an abundant number, since it is smaller than the sum of its proper divisors (93027594).

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

66448230 is a wasteful number, since it uses less digits than its factorization.

66448230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214951.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 66448230 is about 8151.5783747689. The cubic root of 66448230 is about 405.0367898297.

The spelling of 66448230 in words is "sixty-six million, four hundred forty-eight thousand, two hundred thirty".