20034547320 has 128 divisors (see below), whose sum is σ = 62623549440. Its totient is φ = 5121784320.

The previous prime is 20034547319. The next prime is 20034547339. The reversal of 20034547320 is 2374543002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372874 + ... + 423206.

It is an arithmetic number, because the mean of its divisors is an integer number (489246480).

Almost surely, 2^20034547320 is an apocalyptic number.

20034547320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20034547320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31311774720).

20034547320 is an abundant number, since it is smaller than the sum of its proper divisors (42589002120).

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

20034547320 is a wasteful number, since it uses less digits than its factorization.

20034547320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50485 (or 50481 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The spelling of 20034547320 in words is "twenty billion, thirty-four million, five hundred forty-seven thousand, three hundred twenty".