1226361650 has 24 divisors (see below), whose sum is σ = 2401088880. Its totient is φ = 464726160.

The previous prime is 1226361641. The next prime is 1226361659. The reversal of 1226361650 is 561636221.

It is an interprime number because it is at equal distance from previous prime (1226361641) and next prime (1226361659).

It is a super-3 number, since 3×1226361650³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226361659) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 644504 + ... + 646403.

It is an arithmetic number, because the mean of its divisors is an integer number (100045370).

Almost surely, 2^1226361650 is an apocalyptic number.

1226361650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226361650 is a deficient number, since it is larger than the sum of its proper divisors (1174727230).

1226361650 is a wasteful number, since it uses less digits than its factorization.

1226361650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290938 (or 1290933 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1226361650 is about 35019.4467403470. The cubic root of 1226361650 is about 1070.3837823234.

Adding to 1226361650 its reverse (561636221), we get a palindrome (1787997871).

The spelling of 1226361650 in words is "one billion, two hundred twenty-six million, three hundred sixty-one thousand, six hundred fifty".