202421440045 has 16 divisors (see below), whose sum is σ = 265015543680. Its totient is φ = 147200328000.

The previous prime is 202421440031. The next prime is 202421440049. The reversal of 202421440045 is 540044124202.

It is not a de Polignac number, because 202421440045 - 2¹⁵ = 202421407277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202421439995 and 202421440022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202421440049) 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, 358696 + ... + 730414.

It is an arithmetic number, because the mean of its divisors is an integer number (16563471480).

Almost surely, 2^202421440045 is an apocalyptic number.

It is an amenable number.

202421440045 is a deficient number, since it is larger than the sum of its proper divisors (62594103635).

202421440045 is a wasteful number, since it uses less digits than its factorization.

202421440045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381636.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 202421440045 its reverse (540044124202), we get a palindrome (742465564247).

The spelling of 202421440045 in words is "two hundred two billion, four hundred twenty-one million, four hundred forty thousand, forty-five".