2400020004 has 24 divisors (see below), whose sum is σ = 5632421760. Its totient is φ = 795381664.

The previous prime is 2400019991. The next prime is 2400020011. The reversal of 2400020004 is 4000200042.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 575964 + ... + 580115.

It is an arithmetic number, because the mean of its divisors is an integer number (234684240).

Almost surely, 2^2400020004 is an apocalyptic number.

It is an amenable number.

2400020004 is an abundant number, since it is smaller than the sum of its proper divisors (3232401756).

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

2400020004 is a wasteful number, since it uses less digits than its factorization.

2400020004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156259 (or 1156257 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2400020004 is about 48989.9990202082. Note that the first 3 decimals coincide. The cubic root of 2400020004 is about 1338.8696199698.

Adding to 2400020004 its reverse (4000200042), we get a palindrome (6400220046).

It can be divided in two parts, 2 and 400020004, that multiplied together give a palindrome (800040008).

The spelling of 2400020004 in words is "two billion, four hundred million, twenty thousand, four".