1226340660 has 48 divisors (see below), whose sum is σ = 3467108736. Its totient is φ = 323847552.

The previous prime is 1226340653. The next prime is 1226340671. The reversal of 1226340660 is 660436221.

It is a super-2 number, since 2×1226340660² = 3007822828738471200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93039 + ... + 105398.

It is an arithmetic number, because the mean of its divisors is an integer number (72231432).

Almost surely, 2^1226340660 is an apocalyptic number.

1226340660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226340660 is an abundant number, since it is smaller than the sum of its proper divisors (2240768076).

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

1226340660 is a wasteful number, since it uses less digits than its factorization.

1226340660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198552 (or 198550 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1226340660 is about 35019.1470484362. The cubic root of 1226340660 is about 1070.3776755104.

Adding to 1226340660 its reverse (660436221), we get a palindrome (1886776881).

The spelling of 1226340660 in words is "one billion, two hundred twenty-six million, three hundred forty thousand, six hundred sixty".