20447332430 has 16 divisors (see below), whose sum is σ = 42063084000. Its totient is φ = 7010513952.

The previous prime is 20447332397. The next prime is 20447332487. The reversal of 20447332430 is 3423374402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146052305 + ... + 146052444.

It is an arithmetic number, because the mean of its divisors is an integer number (2628942750).

Almost surely, 2^20447332430 is an apocalyptic number.

20447332430 is an abundant number, since it is smaller than the sum of its proper divisors (21615751570).

20447332430 is a wasteful number, since it uses less digits than its factorization.

20447332430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292104763.

The product of its (nonzero) digits is 48384, while the sum is 32.

The spelling of 20447332430 in words is "twenty billion, four hundred forty-seven million, three hundred thirty-two thousand, four hundred thirty".