202423032444 has 12 divisors (see below), whose sum is σ = 472320409064. Its totient is φ = 67474344144.

The previous prime is 202423032437. The next prime is 202423032547. The reversal of 202423032444 is 444230324202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×202423032444² (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 3 ways as a sum of consecutive naturals, for example, 8434293007 + ... + 8434293030.

Almost surely, 2^202423032444 is an apocalyptic number.

It is an amenable number.

202423032444 is an abundant number, since it is smaller than the sum of its proper divisors (269897376620).

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

202423032444 is a wasteful number, since it uses less digits than its factorization.

202423032444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16868586044 (or 16868586042 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 202423032444 its reverse (444230324202), we get a palindrome (646653356646).

The spelling of 202423032444 in words is "two hundred two billion, four hundred twenty-three million, thirty-two thousand, four hundred forty-four".