1226250730 has 8 divisors (see below), whose sum is σ = 2207251332. Its totient is φ = 490500288.

The previous prime is 1226250721. The next prime is 1226250791. The reversal of 1226250730 is 370526221.

It can be written as a sum of positive squares in 2 ways, for example, as 1166017609 + 60233121 = 34147^2 + 7761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61312527 + ... + 61312546.

Almost surely, 2^1226250730 is an apocalyptic number.

1226250730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226250730 is a deficient number, since it is larger than the sum of its proper divisors (981000602).

1226250730 is a wasteful number, since it uses less digits than its factorization.

1226250730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122625080.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1226250730 is about 35017.8630130395. The cubic root of 1226250730 is about 1070.3515105628.

Adding to 1226250730 its reverse (370526221), we get a palindrome (1596776951).

The spelling of 1226250730 in words is "one billion, two hundred twenty-six million, two hundred fifty thousand, seven hundred thirty".