202003420440 has 64 divisors (see below), whose sum is σ = 609639125760. Its totient is φ = 53545013120.

The previous prime is 202003420429. The next prime is 202003420441. The reversal of 202003420440 is 44024300202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202003420441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5019966 + ... + 5060045.

It is an arithmetic number, because the mean of its divisors is an integer number (9525611340).

Almost surely, 2^202003420440 is an apocalyptic number.

202003420440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202003420440 is an abundant number, since it is smaller than the sum of its proper divisors (407635705320).

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

202003420440 is a wasteful number, since it uses less digits than its factorization.

202003420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080192 (or 10080188 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 202003420440 its reverse (44024300202), we get a palindrome (246027720642).

The spelling of 202003420440 in words is "two hundred two billion, three million, four hundred twenty thousand, four hundred forty".