1226061646 has 16 divisors (see below), whose sum is σ = 1880064576. Its totient is φ = 599399136.

The previous prime is 1226061587. The next prime is 1226061677. The reversal of 1226061646 is 6461606221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99160 + ... + 110836.

It is an arithmetic number, because the mean of its divisors is an integer number (117504036).

Almost surely, 2^1226061646 is an apocalyptic number.

1226061646 is a deficient number, since it is larger than the sum of its proper divisors (654002930).

1226061646 is a wasteful number, since it uses less digits than its factorization.

1226061646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1226061646 is about 35015.1630868685. The cubic root of 1226061646 is about 1070.2964927910.

Adding to 1226061646 its reverse (6461606221), we get a palindrome (7687667867).

The spelling of 1226061646 in words is "one billion, two hundred twenty-six million, sixty-one thousand, six hundred forty-six".