245202022420 has 24 divisors (see below), whose sum is σ = 514935124704. Its totient is φ = 98078737056.

The previous prime is 245202022399. The next prime is 245202022427. The reversal of 245202022420 is 24220202542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245202022427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148619 + ... + 1345261.

It is an arithmetic number, because the mean of its divisors is an integer number (21455630196).

Almost surely, 2^245202022420 is an apocalyptic number.

245202022420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245202022420 is an abundant number, since it is smaller than the sum of its proper divisors (269733102284).

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

245202022420 is a wasteful number, since it uses less digits than its factorization.

245202022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258999 (or 258997 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 245202022420 its reverse (24220202542), we get a palindrome (269422224962).

The spelling of 245202022420 in words is "two hundred forty-five billion, two hundred two million, twenty-two thousand, four hundred twenty".