202440004002 has 64 divisors (see below), whose sum is σ = 459686430720. Its totient is φ = 66021555600.

The previous prime is 202440003991. The next prime is 202440004003. The reversal of 202440004002 is 200400044202.

202440004002 is a `hidden beast` number, since 20 + 244 + 0 + 0 + 0 + 400 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202440004003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300723 + ... + 703785.

It is an arithmetic number, because the mean of its divisors is an integer number (7182600480).

Almost surely, 2^202440004002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202440004002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229843215360).

202440004002 is an abundant number, since it is smaller than the sum of its proper divisors (257246426718).

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

202440004002 is a wasteful number, since it uses less digits than its factorization.

202440004002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403276 (or 403270 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 202440004002 its reverse (200400044202), we get a palindrome (402840048204).

The spelling of 202440004002 in words is "two hundred two billion, four hundred forty million, four thousand, two".