202424422440 has 32 divisors (see below), whose sum is σ = 607273267680. Its totient is φ = 53979845952.

The previous prime is 202424422399. The next prime is 202424422441. The reversal of 202424422440 is 44224424202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 202424422398 and 202424422407.

It is not an unprimeable number, because it can be changed into a prime (202424422441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843434974 + ... + 843435213.

It is an arithmetic number, because the mean of its divisors is an integer number (18977289615).

Almost surely, 2^202424422440 is an apocalyptic number.

202424422440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202424422440 is an abundant number, since it is smaller than the sum of its proper divisors (404848845240).

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

202424422440 is a wasteful number, since it uses less digits than its factorization.

202424422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686870201 (or 1686870197 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 202424422440 its reverse (44224424202), we get a palindrome (246648846642).

The spelling of 202424422440 in words is "two hundred two billion, four hundred twenty-four million, four hundred twenty-two thousand, four hundred forty".