2660228890 has 32 divisors (see below), whose sum is σ = 5246783424. Its totient is φ = 963085440.

The previous prime is 2660228869. The next prime is 2660228911. The reversal of 2660228890 is 988220662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2660228869) and next prime (2660228911).

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, 28299 + ... + 78238.

It is an arithmetic number, because the mean of its divisors is an integer number (163961982).

Almost surely, 2^2660228890 is an apocalyptic number.

2660228890 is a deficient number, since it is larger than the sum of its proper divisors (2586554534).

2660228890 is a wasteful number, since it uses less digits than its factorization.

2660228890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106782.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2660228890 is about 51577.4067785498. The cubic root of 2660228890 is about 1385.6057232260.

The spelling of 2660228890 in words is "two billion, six hundred sixty million, two hundred twenty-eight thousand, eight hundred ninety".