209424002 has 16 divisors (see below), whose sum is σ = 316689912. Its totient is φ = 103864320.

The previous prime is 209423999. The next prime is 209424011. The reversal of 209424002 is 200424902.

209424002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 209409841 + 14161 = 14471^2 + 119^2 .

It is a super-2 number, since 2×209424002² = 87716825227392008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181058 + ... + 182210.

Almost surely, 2^209424002 is an apocalyptic number.

209424002 is a deficient number, since it is larger than the sum of its proper divisors (107265910).

209424002 is a wasteful number, since it uses less digits than its factorization.

209424002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 209424002 is about 14471.4892806511. The cubic root of 209424002 is about 593.8482552520.

Adding to 209424002 its reverse (200424902), we get a palindrome (409848904).

The spelling of 209424002 in words is "two hundred nine million, four hundred twenty-four thousand, two".