2400402004 has 72 divisors (see below), whose sum is σ = 5740888608. Its totient is φ = 863271360.

The previous prime is 2400401999. The next prime is 2400402041. The reversal of 2400402004 is 4002040042.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14794 + ... + 70849.

It is an arithmetic number, because the mean of its divisors is an integer number (79734564).

Almost surely, 2^2400402004 is an apocalyptic number.

It is an amenable number.

2400402004 is an abundant number, since it is smaller than the sum of its proper divisors (3340486604).

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

2400402004 is a wasteful number, since it uses less digits than its factorization.

2400402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85685 (or 85676 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2400402004 is about 48993.8976200098. The cubic root of 2400402004 is about 1338.9406500808.

Adding to 2400402004 its reverse (4002040042), we get a palindrome (6402442046).

It can be divided in two parts, 2400 and 402004, that added together give a palindrome (404404).

The spelling of 2400402004 in words is "two billion, four hundred million, four hundred two thousand, four".