202340451040 has 144 divisors (see below), whose sum is σ = 598850213472. Its totient is φ = 64037385216.

The previous prime is 202340451031. The next prime is 202340451221. The reversal of 202340451040 is 40154043202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202340450996 and 202340451014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 890724 + ... + 1094563.

It is an arithmetic number, because the mean of its divisors is an integer number (4158682038).

Almost surely, 2^202340451040 is an apocalyptic number.

202340451040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202340451040 is an abundant number, since it is smaller than the sum of its proper divisors (396509762432).

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

202340451040 is a wasteful number, since it uses less digits than its factorization.

202340451040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985329 (or 1985314 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 202340451040 its reverse (40154043202), we get a palindrome (242494494242).

The spelling of 202340451040 in words is "two hundred two billion, three hundred forty million, four hundred fifty-one thousand, forty".