4040230402 has 8 divisors (see below), whose sum is σ = 6526526076. Its totient is φ = 1864721712.

The previous prime is 4040230399. The next prime is 4040230417. The reversal of 4040230402 is 2040320404.

It can be written as a sum of positive squares in 2 ways, for example, as 3073704481 + 966525921 = 55441^2 + 31089^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4040230402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77696713 + ... + 77696764.

Almost surely, 2^4040230402 is an apocalyptic number.

4040230402 is a deficient number, since it is larger than the sum of its proper divisors (2486295674).

4040230402 is a wasteful number, since it uses less digits than its factorization.

4040230402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155393492.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 4040230402 is about 63562.8067504889. The cubic root of 4040230402 is about 1592.7051246363.

Adding to 4040230402 its reverse (2040320404), we get a palindrome (6080550806).

The spelling of 4040230402 in words is "four billion, forty million, two hundred thirty thousand, four hundred two".