2278248478 has 8 divisors (see below), whose sum is σ = 3728043000. Its totient is φ = 1035567480.

The previous prime is 2278248457. The next prime is 2278248481. The reversal of 2278248478 is 8748428722.

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

It is a super-2 number, since 2×2278248478² = 10380832255018632968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51778353 + ... + 51778396.

It is an arithmetic number, because the mean of its divisors is an integer number (466005375).

Almost surely, 2^2278248478 is an apocalyptic number.

2278248478 is a deficient number, since it is larger than the sum of its proper divisors (1449794522).

2278248478 is a wasteful number, since it uses less digits than its factorization.

2278248478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103556762.

The product of its digits is 3211264, while the sum is 52.

The square root of 2278248478 is about 47731.0012256186. The cubic root of 2278248478 is about 1315.8317547284.

The spelling of 2278248478 in words is "two billion, two hundred seventy-eight million, two hundred forty-eight thousand, four hundred seventy-eight".