1284761226 has 32 divisors (see below), whose sum is σ = 2986375680. Its totient is φ = 360852336.

The previous prime is 1284761221. The next prime is 1284761239. The reversal of 1284761226 is 6221674821.

It is a super-2 number, since 2×1284761226² = 3301222815666046152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1284761221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256756 + ... + 261711.

It is an arithmetic number, because the mean of its divisors is an integer number (93324240).

Almost surely, 2^1284761226 is an apocalyptic number.

1284761226 is an abundant number, since it is smaller than the sum of its proper divisors (1701614454).

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

1284761226 is a wasteful number, since it uses less digits than its factorization.

1284761226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518538.

The product of its digits is 64512, while the sum is 39.

The square root of 1284761226 is about 35843.5660335296. The cubic root of 1284761226 is about 1087.1116262543. Note that the first 3 decimals are identical.

The spelling of 1284761226 in words is "one billion, two hundred eighty-four million, seven hundred sixty-one thousand, two hundred twenty-six".