2291369328 has 30 divisors (see below), whose sum is σ = 6412652064. Its totient is φ = 763789728.

The previous prime is 2291369323. The next prime is 2291369363. The reversal of 2291369328 is 8239631922.

It is a happy number.

2291369328 is a `hidden beast` number, since 2 + 291 + 36 + 9 + 328 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291369321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7956000 + ... + 7956287.

Almost surely, 2^2291369328 is an apocalyptic number.

It is an amenable number.

2291369328 is an abundant number, since it is smaller than the sum of its proper divisors (4121282736).

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

2291369328 is a wasteful number, since it uses less digits than its factorization.

2291369328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912301 (or 15912292 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 2291369328 is about 47868.2496859871. The cubic root of 2291369328 is about 1318.3529595210.

The spelling of 2291369328 in words is "two billion, two hundred ninety-one million, three hundred sixty-nine thousand, three hundred twenty-eight".