1226273244 has 48 divisors (see below), whose sum is σ = 3412243968. Its totient is φ = 335130048.

The previous prime is 1226273233. The next prime is 1226273317. The reversal of 1226273244 is 4423726221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315427 + ... + 319290.

It is an arithmetic number, because the mean of its divisors is an integer number (71088416).

Almost surely, 2^1226273244 is an apocalyptic number.

1226273244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1226273244 is an abundant number, since it is smaller than the sum of its proper divisors (2185970724).

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

1226273244 is a wasteful number, since it uses less digits than its factorization.

1226273244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634754 (or 634752 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 1226273244 is about 35018.1844760690. The cubic root of 1226273244 is about 1070.3580610846.

Adding to 1226273244 its reverse (4423726221), we get a palindrome (5649999465).

The spelling of 1226273244 in words is "one billion, two hundred twenty-six million, two hundred seventy-three thousand, two hundred forty-four".