423304266 has 64 divisors (see below), whose sum is σ = 1057720320. Its totient is φ = 109719360.

The previous prime is 423304253. The next prime is 423304283. The reversal of 423304266 is 662403324.

It is a happy number.

It is a super-2 number, since 2×423304266² = 358373003227597512, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424080 + ... + 425076.

It is an arithmetic number, because the mean of its divisors is an integer number (16526880).

Almost surely, 2^423304266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423304266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528860160).

423304266 is an abundant number, since it is smaller than the sum of its proper divisors (634416054).

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

423304266 is a wasteful number, since it uses less digits than its factorization.

423304266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 423304266 is about 20574.3594310977. The cubic root of 423304266 is about 750.8460177575.

The spelling of 423304266 in words is "four hundred twenty-three million, three hundred four thousand, two hundred sixty-six".