2289666478 has 32 divisors (see below), whose sum is σ = 3972810240. Its totient is φ = 978759360.

The previous prime is 2289666439. The next prime is 2289666481. The reversal of 2289666478 is 8746669822.

It is a congruent number.

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, 37275 + ... + 77257.

It is an arithmetic number, because the mean of its divisors is an integer number (124150320).

Almost surely, 2^2289666478 is an apocalyptic number.

2289666478 is a deficient number, since it is larger than the sum of its proper divisors (1683143762).

2289666478 is a wasteful number, since it uses less digits than its factorization.

2289666478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40152.

The product of its digits is 13934592, while the sum is 58.

The square root of 2289666478 is about 47850.4595380232. The cubic root of 2289666478 is about 1318.0262969647.

The spelling of 2289666478 in words is "two billion, two hundred eighty-nine million, six hundred sixty-six thousand, four hundred seventy-eight".