2402404040 has 16 divisors (see below), whose sum is σ = 5405409180. Its totient is φ = 960961600.

The previous prime is 2402404021. The next prime is 2402404049. The reversal of 2402404040 is 404042042.

It can be written as a sum of positive squares in 2 ways, for example, as 2210692324 + 191711716 = 47018^2 + 13846^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2402404049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30030011 + ... + 30030090.

Almost surely, 2^2402404040 is an apocalyptic number.

2402404040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402404040 is an abundant number, since it is smaller than the sum of its proper divisors (3003005140).

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

2402404040 is a wasteful number, since it uses less digits than its factorization.

2402404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60060112 (or 60060108 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2402404040 is about 49014.3248448859. The cubic root of 2402404040 is about 1339.3127908691.

Adding to 2402404040 its reverse (404042042), we get a palindrome (2806446082).

The spelling of 2402404040 in words is "two billion, four hundred two million, four hundred four thousand, forty".