2278470989 has 8 divisors (see below), whose sum is σ = 2341052928. Its totient is φ = 2215941840.

The previous prime is 2278470967. The next prime is 2278470991. The reversal of 2278470989 is 9890748722.

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

It is a de Polignac number, because none of the positive numbers 2^k-2278470989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278470949) 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, 83984 + ... + 107750.

It is an arithmetic number, because the mean of its divisors is an integer number (292631616).

Almost surely, 2^2278470989 is an apocalyptic number.

It is an amenable number.

2278470989 is a deficient number, since it is larger than the sum of its proper divisors (62581939).

2278470989 is a wasteful number, since it uses less digits than its factorization.

2278470989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26395.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 2278470989 is about 47733.3320542365. The cubic root of 2278470989 is about 1315.8745913653.

The spelling of 2278470989 in words is "two billion, two hundred seventy-eight million, four hundred seventy thousand, nine hundred eighty-nine".