202434401 has 16 divisors (see below), whose sum is σ = 224395920. Its totient is φ = 181459200.

The previous prime is 202434391. The next prime is 202434443. The reversal of 202434401 is 104434202.

It can be written as a sum of positive squares in 8 ways, for example, as 33408400 + 169026001 = 5780^2 + 13001^2 .

It is not a de Polignac number, because 202434401 - 2¹⁰ = 202433377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202434481) 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, 68135 + ... + 71043.

It is an arithmetic number, because the mean of its divisors is an integer number (14024745).

Almost surely, 2^202434401 is an apocalyptic number.

It is an amenable number.

202434401 is a deficient number, since it is larger than the sum of its proper divisors (21961519).

202434401 is a wasteful number, since it uses less digits than its factorization.

202434401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076.

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

The square root of 202434401 is about 14227.9443701471. The cubic root of 202434401 is about 587.1667291041.

Adding to 202434401 its reverse (104434202), we get a palindrome (306868603).

The spelling of 202434401 in words is "two hundred two million, four hundred thirty-four thousand, four hundred one".