66424226 has 8 divisors (see below), whose sum is σ = 108694224. Its totient is φ = 30192820.

The previous prime is 66424201. The next prime is 66424229. The reversal of 66424226 is 62242466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66424192 and 66424201.

It is not an unprimeable number, because it can be changed into a prime (66424229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509620 + ... + 1509663.

It is an arithmetic number, because the mean of its divisors is an integer number (13586778).

Almost surely, 2^66424226 is an apocalyptic number.

66424226 is a deficient number, since it is larger than the sum of its proper divisors (42269998).

66424226 is a wasteful number, since it uses less digits than its factorization.

66424226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019296.

The product of its digits is 27648, while the sum is 32.

The square root of 66424226 is about 8150.1058888827. The cubic root of 66424226 is about 404.9880116352.

The spelling of 66424226 in words is "sixty-six million, four hundred twenty-four thousand, two hundred twenty-six".