1226356000 has 48 divisors (see below), whose sum is σ = 3013166520. Its totient is φ = 490540800.

The previous prime is 1226355967. The next prime is 1226356003. The reversal of 1226356000 is 6536221.

It can be written as a sum of positive squares in 4 ways, for example, as 498003856 + 728352144 = 22316^2 + 26988^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1226356003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149295 + ... + 157294.

Almost surely, 2^1226356000 is an apocalyptic number.

1226356000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226356000 is an abundant number, since it is smaller than the sum of its proper divisors (1786810520).

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

1226356000 is an equidigital number, since it uses as much as digits as its factorization.

1226356000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306614 (or 306596 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1226356000 is about 35019.3660707900. The cubic root of 1226356000 is about 1070.3821385240.

The spelling of 1226356000 in words is "one billion, two hundred twenty-six million, three hundred fifty-six thousand".