421330254452 has 12 divisors (see below), whose sum is σ = 737359852320. Its totient is φ = 210656010936.

The previous prime is 421330254451. The next prime is 421330254497. The reversal of 421330254452 is 254452033124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421330254451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2174552 + ... + 2360367.

It is an arithmetic number, because the mean of its divisors is an integer number (61446654360).

Almost surely, 2^421330254452 is an apocalyptic number.

It is an amenable number.

421330254452 is a deficient number, since it is larger than the sum of its proper divisors (316029597868).

421330254452 is a wasteful number, since it uses less digits than its factorization.

421330254452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558150 (or 4558148 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 421330254452 its reverse (254452033124), we get a palindrome (675782287576).

The spelling of 421330254452 in words is "four hundred twenty-one billion, three hundred thirty million, two hundred fifty-four thousand, four hundred fifty-two".