2288931081 has 8 divisors (see below), whose sum is σ = 3052206624. Its totient is φ = 1525804800.

The previous prime is 2288931079. The next prime is 2288931107. The reversal of 2288931081 is 1801398822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2288931081 - 2¹ = 2288931079 is a prime.

It is a super-2 number, since 2×2288931081² = 10478410987135657122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2288931031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5481 + ... + 67881.

It is an arithmetic number, because the mean of its divisors is an integer number (381525828).

Almost surely, 2^2288931081 is an apocalyptic number.

It is an amenable number.

2288931081 is a deficient number, since it is larger than the sum of its proper divisors (763275543).

2288931081 is a wasteful number, since it uses less digits than its factorization.

2288931081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74631.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 2288931081 is about 47842.7745955437. The cubic root of 2288931081 is about 1317.8851735911.

The spelling of 2288931081 in words is "two billion, two hundred eighty-eight million, nine hundred thirty-one thousand, eighty-one".