20424600456 has 48 divisors (see below), whose sum is σ = 55291458960. Its totient is φ = 6284491200.

The previous prime is 20424600433. The next prime is 20424600457. The reversal of 20424600456 is 65400642402.

It is not an unprimeable number, because it can be changed into a prime (20424600457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2513770 + ... + 2521881.

It is an arithmetic number, because the mean of its divisors is an integer number (1151905395).

Almost surely, 2^20424600456 is an apocalyptic number.

20424600456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20424600456 is an abundant number, since it is smaller than the sum of its proper divisors (34866858504).

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

20424600456 is a wasteful number, since it uses less digits than its factorization.

20424600456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035686 (or 5035669 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 20424600456 in words is "twenty billion, four hundred twenty-four million, six hundred thousand, four hundred fifty-six".