20422843430 has 24 divisors (see below), whose sum is σ = 40406851296. Its totient is φ = 7426488080.

The previous prime is 20422843429. The next prime is 20422843447. The reversal of 20422843430 is 3434822402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8437982 + ... + 8440401.

It is an arithmetic number, because the mean of its divisors is an integer number (1683618804).

Almost surely, 2^20422843430 is an apocalyptic number.

20422843430 is a deficient number, since it is larger than the sum of its proper divisors (19984007866).

20422843430 is a wasteful number, since it uses less digits than its factorization.

20422843430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16878412 (or 16878401 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 20422843430 in words is "twenty billion, four hundred twenty-two million, eight hundred forty-three thousand, four hundred thirty".