2228939380 has 48 divisors (see below), whose sum is σ = 4787430480. Its totient is φ = 871390208.

The previous prime is 2228939371. The next prime is 2228939393. The reversal of 2228939380 is 839398222.

It is a happy number.

2228939380 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 8 ways, for example, as 686335204 + 1542604176 = 26198^2 + 39276^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2228939380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281232 + ... + 289048.

It is an arithmetic number, because the mean of its divisors is an integer number (99738135).

Almost surely, 2^2228939380 is an apocalyptic number.

2228939380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2228939380 is an abundant number, since it is smaller than the sum of its proper divisors (2558491100).

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

2228939380 is a wasteful number, since it uses less digits than its factorization.

2228939380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148 (or 8146 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2228939380 is about 47211.6445381857. The cubic root of 2228939380 is about 1306.2693969938.

The spelling of 2228939380 in words is "two billion, two hundred twenty-eight million, nine hundred thirty-nine thousand, three hundred eighty".