202404431000 has 128 divisors (see below), whose sum is σ = 504858744000. Its totient is φ = 75686963200.

The previous prime is 202404430993. The next prime is 202404431003. The reversal of 202404431000 is 134404202.

It is a super-2 number, since 2×202404431000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202404431003) 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, 2493047 + ... + 2572953.

Almost surely, 2^202404431000 is an apocalyptic number.

202404431000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202404431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252429372000).

202404431000 is an abundant number, since it is smaller than the sum of its proper divisors (302454313000).

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

202404431000 is a wasteful number, since it uses less digits than its factorization.

202404431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80094 (or 80080 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 202404431000 its reverse (134404202), we get a palindrome (202538835202).

The spelling of 202404431000 in words is "two hundred two billion, four hundred four million, four hundred thirty-one thousand".