20424894332 has 12 divisors (see below), whose sum is σ = 37297633296. Its totient is φ = 9768427680.

The previous prime is 20424894319. The next prime is 20424894361. The reversal of 20424894332 is 23349842402.

It is a self number, because there is not a number n which added to its sum of digits gives 20424894332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111004769 + ... + 111004952.

It is an arithmetic number, because the mean of its divisors is an integer number (3108136108).

Almost surely, 2^20424894332 is an apocalyptic number.

It is an amenable number.

20424894332 is a deficient number, since it is larger than the sum of its proper divisors (16872738964).

20424894332 is a wasteful number, since it uses less digits than its factorization.

20424894332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222009748 (or 222009746 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 20424894332 in words is "twenty billion, four hundred twenty-four million, eight hundred ninety-four thousand, three hundred thirty-two".