2227946640 has 160 divisors (see below), whose sum is σ = 7089831936. Its totient is φ = 578496000.

The previous prime is 2227946629. The next prime is 2227946647. The reversal of 2227946640 is 466497222.

It is a junction number, because it is equal to n+sod(n) for n = 2227946592 and 2227946601.

It is not an unprimeable number, because it can be changed into a prime (2227946647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2966265 + ... + 2967015.

Almost surely, 2^2227946640 is an apocalyptic number.

2227946640 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 2227946640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544915968).

2227946640 is an abundant number, since it is smaller than the sum of its proper divisors (4861885296).

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

2227946640 is a wasteful number, since it uses less digits than its factorization.

2227946640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 2227946640 is about 47201.1296474989. The cubic root of 2227946640 is about 1306.0754365143.

The spelling of 2227946640 in words is "two billion, two hundred twenty-seven million, nine hundred forty-six thousand, six hundred forty".