2228946156 has 72 divisors (see below), whose sum is σ = 5795635664. Its totient is φ = 721768320.

The previous prime is 2228946133. The next prime is 2228946173. The reversal of 2228946156 is 6516498222.

2228946156 is a `hidden beast` number, since 2 + 2 + 28 + 9 + 4 + 615 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1455111 + ... + 1456641.

Almost surely, 2^2228946156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2228946156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897817832).

2228946156 is an abundant number, since it is smaller than the sum of its proper divisors (3566689508).

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

2228946156 is a wasteful number, since it uses less digits than its factorization.

2228946156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2666 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2228946156 is about 47211.7163000881. The cubic root of 2228946156 is about 1306.2707206835.

The spelling of 2228946156 in words is "two billion, two hundred twenty-eight million, nine hundred forty-six thousand, one hundred fifty-six".