2247779156 has 48 divisors (see below), whose sum is σ = 4711392000. Its totient is φ = 937276704.

The previous prime is 2247779123. The next prime is 2247779159. The reversal of 2247779156 is 6519777422.

2247779156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2247779156² = 10105022268296144672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247779159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28625 + ... + 72903.

It is an arithmetic number, because the mean of its divisors is an integer number (98154000).

Almost surely, 2^2247779156 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 2247779156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2355696000).

2247779156 is an abundant number, since it is smaller than the sum of its proper divisors (2463612844).

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

2247779156 is a wasteful number, since it uses less digits than its factorization.

2247779156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44341 (or 44325 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 50.

The square root of 2247779156 is about 47410.7493718460. The cubic root of 2247779156 is about 1309.9394249713.

The spelling of 2247779156 in words is "two billion, two hundred forty-seven million, seven hundred seventy-nine thousand, one hundred fifty-six".