213444452424 has 64 divisors (see below), whose sum is σ = 619838720640. Its totient is φ = 59984386560.

The previous prime is 213444452413. The next prime is 213444452471. The reversal of 213444452424 is 424254444312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10403709 + ... + 10424204.

It is an arithmetic number, because the mean of its divisors is an integer number (9684980010).

Almost surely, 2^213444452424 is an apocalyptic number.

213444452424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213444452424 is an abundant number, since it is smaller than the sum of its proper divisors (406394268216).

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

213444452424 is a wasteful number, since it uses less digits than its factorization.

213444452424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20827990 (or 20827986 counting only the distinct ones).

The product of its digits is 491520, while the sum is 39.

Adding to 213444452424 its reverse (424254444312), we get a palindrome (637698896736).

The spelling of 213444452424 in words is "two hundred thirteen billion, four hundred forty-four million, four hundred fifty-two thousand, four hundred twenty-four".