202102023444 has 48 divisors (see below), whose sum is σ = 481698029568. Its totient is φ = 65921233248.

The previous prime is 202102023421. The next prime is 202102023449. The reversal of 202102023444 is 444320201202.

It is a super-2 number, since 2×202102023444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102023449) 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, 3139509 + ... + 3203235.

It is an arithmetic number, because the mean of its divisors is an integer number (10035375616).

Almost surely, 2^202102023444 is an apocalyptic number.

It is an amenable number.

202102023444 is an abundant number, since it is smaller than the sum of its proper divisors (279596006124).

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

202102023444 is a wasteful number, since it uses less digits than its factorization.

202102023444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69404 (or 69402 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 202102023444 its reverse (444320201202), we get a palindrome (646422224646).

The spelling of 202102023444 in words is "two hundred two billion, one hundred two million, twenty-three thousand, four hundred forty-four".