202042433440 has 48 divisors (see below), whose sum is σ = 485150276520. Its totient is φ = 79492101120.

The previous prime is 202042433419. The next prime is 202042433479. The reversal of 202042433440 is 44334240202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 156141941904 + 45900491536 = 395148^2 + 214244^2 .

It is a super-2 number, since 2×202042433440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202042433399 and 202042433408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10340775 + ... + 10360294.

Almost surely, 2^202042433440 is an apocalyptic number.

202042433440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202042433440 is an abundant number, since it is smaller than the sum of its proper divisors (283107843080).

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

202042433440 is a wasteful number, since it uses less digits than its factorization.

202042433440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20701145 (or 20701137 counting only the distinct ones).

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

Adding to 202042433440 its reverse (44334240202), we get a palindrome (246376673642).

The spelling of 202042433440 in words is "two hundred two billion, forty-two million, four hundred thirty-three thousand, four hundred forty".