2774780226 has 20 divisors (see below), whose sum is σ = 6217563462. Its totient is φ = 924926688.

The previous prime is 2774780167. The next prime is 2774780227. The reversal of 2774780226 is 6220874772.

It can be written as a sum of positive squares in only one way, i.e., 2710764225 + 64016001 = 52065^2 + 8001^2 .

It is a super-2 number, since 2×2774780226² = 15398810605201222152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2774780227) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8563975 + ... + 8564298.

Almost surely, 2^2774780226 is an apocalyptic number.

2774780226 is an abundant number, since it is smaller than the sum of its proper divisors (3442783236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2774780226 is a wasteful number, since it uses less digits than its factorization.

2774780226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128287 (or 17128278 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 2774780226 is about 52676.1827204668. The cubic root of 2774780226 is about 1405.2152802258.

The spelling of 2774780226 in words is "two billion, seven hundred seventy-four million, seven hundred eighty thousand, two hundred twenty-six".