20433474420 has 24 divisors (see below), whose sum is σ = 57213728544. Its totient is φ = 5448926496.

The previous prime is 20433474403. The next prime is 20433474461. The reversal of 20433474420 is 2447433402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170278894 + ... + 170279013.

It is an arithmetic number, because the mean of its divisors is an integer number (2383905356).

Almost surely, 2^20433474420 is an apocalyptic number.

20433474420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20433474420 is an abundant number, since it is smaller than the sum of its proper divisors (36780254124).

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

20433474420 is a wasteful number, since it uses less digits than its factorization.

20433474420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340557919 (or 340557917 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 33.

The spelling of 20433474420 in words is "twenty billion, four hundred thirty-three million, four hundred seventy-four thousand, four hundred twenty".