423439299 has 16 divisors (see below), whose sum is σ = 628045440. Its totient is φ = 281965320.

The previous prime is 423439297. The next prime is 423439307. The reversal of 423439299 is 992934324.

It is a happy number.

It is not a de Polignac number, because 423439299 - 2¹ = 423439297 is a prime.

It is a super-2 number, since 2×423439299² = 358601679875222802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (423439297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15844 + ... + 33134.

It is an arithmetic number, because the mean of its divisors is an integer number (39252840).

Almost surely, 2^423439299 is an apocalyptic number.

423439299 is a deficient number, since it is larger than the sum of its proper divisors (204606141).

423439299 is a wasteful number, since it uses less digits than its factorization.

423439299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18207 (or 18201 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 423439299 is about 20577.6407539834. The cubic root of 423439299 is about 750.9258486022.

The spelling of 423439299 in words is "four hundred twenty-three million, four hundred thirty-nine thousand, two hundred ninety-nine".