2273157852 has 72 divisors (see below), whose sum is σ = 6145550208. Its totient is φ = 640524960.

The previous prime is 2273157847. The next prime is 2273157881. The reversal of 2273157852 is 2587513722.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 3980727 + ... + 3981297.

It is an arithmetic number, because the mean of its divisors is an integer number (85354864).

Almost surely, 2^2273157852 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 2273157852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072775104).

2273157852 is an abundant number, since it is smaller than the sum of its proper divisors (3872392356).

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

2273157852 is an equidigital number, since it uses as much as digits as its factorization.

2273157852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 666 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 2273157852 is about 47677.6452019183. The cubic root of 2273157852 is about 1314.8509716563.

The spelling of 2273157852 in words is "two billion, two hundred seventy-three million, one hundred fifty-seven thousand, eight hundred fifty-two".