202423401040 has 80 divisors (see below), whose sum is σ = 538228944000. Its totient is φ = 69355722240.

The previous prime is 202423401023. The next prime is 202423401041. The reversal of 202423401040 is 40104324202.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202423401041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718870 + ... + 960010.

It is an arithmetic number, because the mean of its divisors is an integer number (6727861800).

Almost surely, 2^202423401040 is an apocalyptic number.

202423401040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202423401040 is an abundant number, since it is smaller than the sum of its proper divisors (335805542960).

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

202423401040 is a wasteful number, since it uses less digits than its factorization.

202423401040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242660 (or 242654 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 202423401040 its reverse (40104324202), we get a palindrome (242527725242).

The spelling of 202423401040 in words is "two hundred two billion, four hundred twenty-three million, four hundred one thousand, forty".