2400402002 has 8 divisors (see below), whose sum is σ = 3624448512. Its totient is φ = 1192252500.

The previous prime is 2400401999. The next prime is 2400402041. The reversal of 2400402002 is 2002040042.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3973874 + ... + 3974477.

It is an arithmetic number, because the mean of its divisors is an integer number (453056064).

Almost surely, 2^2400402002 is an apocalyptic number.

2400402002 is a deficient number, since it is larger than the sum of its proper divisors (1224046510).

2400402002 is a wasteful number, since it uses less digits than its factorization.

2400402002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7948504.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2400402002 is about 48993.8975995991. The cubic root of 2400402002 is about 1338.9406497090.

Adding to 2400402002 its reverse (2002040042), we get a palindrome (4402442044).

The spelling of 2400402002 in words is "two billion, four hundred million, four hundred two thousand, two".