202012402240 has 56 divisors (see below), whose sum is σ = 524773135872. Its totient is φ = 73459054080.

The previous prime is 202012402223. The next prime is 202012402247. The reversal of 202012402240 is 42204210202.

It is not an unprimeable number, because it can be changed into a prime (202012402247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28691424 + ... + 28698463.

Almost surely, 2^202012402240 is an apocalyptic number.

202012402240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012402240 is an abundant number, since it is smaller than the sum of its proper divisors (322760733632).

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

202012402240 is a wasteful number, since it uses less digits than its factorization.

202012402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57389915 (or 57389905 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 202012402240 its reverse (42204210202), we get a palindrome (244216612442).

The spelling of 202012402240 in words is "two hundred two billion, twelve million, four hundred two thousand, two hundred forty".