1226363550 has 48 divisors (see below), whose sum is σ = 3201461760. Its totient is φ = 309817440.

The previous prime is 1226363549. The next prime is 1226363591. The reversal of 1226363550 is 553636221.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212302 + ... + 218001.

It is an arithmetic number, because the mean of its divisors is an integer number (66697120).

Almost surely, 2^1226363550 is an apocalyptic number.

1226363550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226363550 is an abundant number, since it is smaller than the sum of its proper divisors (1975098210).

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

1226363550 is a wasteful number, since it uses less digits than its factorization.

1226363550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430337 (or 430332 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 1226363550 is about 35019.4738681209. The cubic root of 1226363550 is about 1070.3843351044.

Adding to 1226363550 its reverse (553636221), we get a palindrome (1779999771).

The spelling of 1226363550 in words is "one billion, two hundred twenty-six million, three hundred sixty-three thousand, five hundred fifty".