2288406660 has 48 divisors (see below), whose sum is σ = 6409943232. Its totient is φ = 610012800.

The previous prime is 2288406649. The next prime is 2288406671. The reversal of 2288406660 is 666048822.

It is an interprime number because it is at equal distance from previous prime (2288406649) and next prime (2288406671).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207075 + ... + 217845.

It is an arithmetic number, because the mean of its divisors is an integer number (133540484).

Almost surely, 2^2288406660 is an apocalyptic number.

2288406660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2288406660 is an abundant number, since it is smaller than the sum of its proper divisors (4121536572).

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

2288406660 is a wasteful number, since it uses less digits than its factorization.

2288406660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14324 (or 14322 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 2288406660 is about 47837.2936107385. The cubic root of 2288406660 is about 1317.7845182452.

The spelling of 2288406660 in words is "two billion, two hundred eighty-eight million, four hundred six thousand, six hundred sixty".