2400042402 has 12 divisors (see below), whose sum is σ = 5200091910. Its totient is φ = 800014128.

The previous prime is 2400042391. The next prime is 2400042409. The reversal of 2400042402 is 2042400042.

2400042402 is a `hidden beast` number, since 240 + 0 + 0 + 424 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1705772601 + 694269801 = 41301^2 + 26349^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 133335689 = 2400042402 / (2 + 4 + 0 + 0 + 0 + 4 + 2 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (2400042409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66667827 + ... + 66667862.

Almost surely, 2^2400042402 is an apocalyptic number.

2400042402 is an abundant number, since it is smaller than the sum of its proper divisors (2800049508).

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

2400042402 is a wasteful number, since it uses less digits than its factorization.

2400042402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133335697 (or 133335694 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2400042402 is about 48990.2276173524. The cubic root of 2400042402 is about 1338.8737849223.

Adding to 2400042402 its reverse (2042400042), we get a palindrome (4442442444).

The spelling of 2400042402 in words is "two billion, four hundred million, forty-two thousand, four hundred two".