202434234040 has 64 divisors (see below), whose sum is σ = 482327667360. Its totient is φ = 76201390080.

The previous prime is 202434234029. The next prime is 202434234053. The reversal of 202434234040 is 40432434202.

It is a happy number.

It is a super-2 number, since 2×202434234040² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 8992639 + ... + 9015121.

Almost surely, 2^202434234040 is an apocalyptic number.

202434234040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202434234040 is an abundant number, since it is smaller than the sum of its proper divisors (279893433320).

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

202434234040 is a wasteful number, since it uses less digits than its factorization.

202434234040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35752 (or 35748 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 202434234040 its reverse (40432434202), we get a palindrome (242866668242).

The spelling of 202434234040 in words is "two hundred two billion, four hundred thirty-four million, two hundred thirty-four thousand, forty".