1226768904 has 48 divisors (see below), whose sum is σ = 3437073900. Its totient is φ = 394821504.

The previous prime is 1226768903. The next prime is 1226768911. The reversal of 1226768904 is 4098676221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1122116004 + 104652900 = 33498^2 + 10230^2 .

It is a super-2 number, since 2×1226768904² = 3009923887642722432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1226768904.

It is not an unprimeable number, because it can be changed into a prime (1226768903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291679 + ... + 295854.

Almost surely, 2^1226768904 is an apocalyptic number.

It is an amenable number.

1226768904 is an abundant number, since it is smaller than the sum of its proper divisors (2210304996).

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

1226768904 is a wasteful number, since it uses less digits than its factorization.

1226768904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587574 (or 587567 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1226768904 is about 35025.2609412121. The cubic root of 1226768904 is about 1070.5022546713.

The spelling of 1226768904 in words is "one billion, two hundred twenty-six million, seven hundred sixty-eight thousand, nine hundred four".