424099999 has 4 divisors (see below), whose sum is σ = 431052520. Its totient is φ = 417147480.

The previous prime is 424099987. The next prime is 424100021. The reversal of 424099999 is 999990424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424099999 - 2¹¹ = 424097951 is a prime.

It is a Duffinian number.

424099999 is a modest number, since divided by 99999 gives 4240 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424099099) 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, 3476169 + ... + 3476290.

It is an arithmetic number, because the mean of its divisors is an integer number (107763130).

Almost surely, 2^424099999 is an apocalyptic number.

424099999 is a deficient number, since it is larger than the sum of its proper divisors (6952521).

424099999 is an equidigital number, since it uses as much as digits as its factorization.

424099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6952520.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The square root of 424099999 is about 20593.6883291945. The cubic root of 424099999 is about 751.3162067079.

The spelling of 424099999 in words is "four hundred twenty-four million, ninety-nine thousand, nine hundred ninety-nine".