20236843470 has 64 divisors (see below), whose sum is σ = 48743208000. Its totient is φ = 5377115136.

The previous prime is 20236843441. The next prime is 20236843477. The reversal of 20236843470 is 7434863202.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20236843477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18247276 + ... + 18248384.

It is an arithmetic number, because the mean of its divisors is an integer number (761612625).

Almost surely, 2^20236843470 is an apocalyptic number.

20236843470 is an abundant number, since it is smaller than the sum of its proper divisors (28506364530).

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

20236843470 is a wasteful number, since it uses less digits than its factorization.

20236843470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 20236843470 in words is "twenty billion, two hundred thirty-six million, eight hundred forty-three thousand, four hundred seventy".