202344401421 has 24 divisors (see below), whose sum is σ = 293234495424. Its totient is φ = 134453753280.

The previous prime is 202344401317. The next prime is 202344401449. The reversal of 202344401421 is 124104443202.

202344401421 is a `hidden beast` number, since 2 + 0 + 234 + 4 + 4 + 0 + 1 + 421 = 666.

It is not a de Polignac number, because 202344401421 - 2¹⁰ = 202344400397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202344401461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16846200 + ... + 16858206.

It is an arithmetic number, because the mean of its divisors is an integer number (12218103976).

Almost surely, 2^202344401421 is an apocalyptic number.

It is an amenable number.

202344401421 is a deficient number, since it is larger than the sum of its proper divisors (90890094003).

202344401421 is a wasteful number, since it uses less digits than its factorization.

202344401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18001 (or 17998 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 202344401421 its reverse (124104443202), we get a palindrome (326448844623).

The spelling of 202344401421 in words is "two hundred two billion, three hundred forty-four million, four hundred one thousand, four hundred twenty-one".