202402404240 has 80 divisors (see below), whose sum is σ = 627813317376. Its totient is φ = 53942502400.

The previous prime is 202402404181. The next prime is 202402404271. The reversal of 202402404240 is 42404204202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 202402404240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168025 + ... + 658055.

Almost surely, 2^202402404240 is an apocalyptic number.

202402404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202402404240 is an abundant number, since it is smaller than the sum of its proper divisors (425410913136).

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

202402404240 is a wasteful number, since it uses less digits than its factorization.

202402404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491768 (or 491762 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 202402404240 its reverse (42404204202), we get a palindrome (244806608442).

The spelling of 202402404240 in words is "two hundred two billion, four hundred two million, four hundred four thousand, two hundred forty".