2002404440 has 32 divisors (see below), whose sum is σ = 4511052000. Its totient is φ = 799958784.

The previous prime is 2002404413. The next prime is 2002404451. The reversal of 2002404440 is 444042002.

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

It is a congruent number.

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, 1421 + ... + 63299.

It is an arithmetic number, because the mean of its divisors is an integer number (140970375).

Almost surely, 2^2002404440 is an apocalyptic number.

2002404440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002404440 is an abundant number, since it is smaller than the sum of its proper divisors (2508647560).

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

2002404440 is a wasteful number, since it uses less digits than its factorization.

2002404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62699 (or 62695 counting only the distinct ones).

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

The square root of 2002404440 is about 44748.2339316313. The cubic root of 2002404440 is about 1260.4257484575.

Adding to 2002404440 its reverse (444042002), we get a palindrome (2446446442).

The spelling of 2002404440 in words is "two billion, two million, four hundred four thousand, four hundred forty".