1226374218 has 12 divisors (see below), whose sum is σ = 2657144178. Its totient is φ = 408791400.

The previous prime is 1226374199. The next prime is 1226374241. The reversal of 1226374218 is 8124736221.

It is a happy number.

1226374218 is a `hidden beast` number, since 1 + 2 + 2 + 637 + 4 + 2 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 647346249 + 579027969 = 25443^2 + 24063^2 .

It is a super-3 number, since 3×1226374218³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34065933 + ... + 34065968.

Almost surely, 2^1226374218 is an apocalyptic number.

1226374218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1226374218 is an abundant number, since it is smaller than the sum of its proper divisors (1430769960).

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

1226374218 is a wasteful number, since it uses less digits than its factorization.

1226374218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68131909 (or 68131906 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 1226374218 is about 35019.6261830420. The cubic root of 1226374218 is about 1070.3874388134.

The spelling of 1226374218 in words is "one billion, two hundred twenty-six million, three hundred seventy-four thousand, two hundred eighteen".