2978641226 has 48 divisors (see below), whose sum is σ = 5031711360. Its totient is φ = 1311475200.

The previous prime is 2978641219. The next prime is 2978641271. The reversal of 2978641226 is 6221468792.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8838530 + ... + 8838866.

It is an arithmetic number, because the mean of its divisors is an integer number (104827320).

Almost surely, 2^2978641226 is an apocalyptic number.

2978641226 is a deficient number, since it is larger than the sum of its proper divisors (2053070134).

2978641226 is a wasteful number, since it uses less digits than its factorization.

2978641226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 630 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 2978641226 is about 54576.9294299340. The cubic root of 2978641226 is about 1438.8186726692.

The spelling of 2978641226 in words is "two billion, nine hundred seventy-eight million, six hundred forty-one thousand, two hundred twenty-six".