2234920820 has 90 divisors (see below), whose sum is σ = 5330747730. Its totient is φ = 786482400.

The previous prime is 2234920819. The next prime is 2234920843. The reversal of 2234920820 is 280294322.

2234920820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1787936656 + 446984164 = 42284^2 + 21142^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 72094205 + ... + 72094235.

Almost surely, 2^2234920820 is an apocalyptic number.

2234920820 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 2234920820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2665373865).

2234920820 is an abundant number, since it is smaller than the sum of its proper divisors (3095826910).

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

2234920820 is an frugal number, since it uses more digits than its factorization.

2234920820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2234920820 is about 47274.9491803006. The cubic root of 2234920820 is about 1307.4368271681.

The spelling of 2234920820 in words is "two billion, two hundred thirty-four million, nine hundred twenty thousand, eight hundred twenty".