1226518488 has 48 divisors (see below), whose sum is σ = 3577348320. Its totient is φ = 377390016.

The previous prime is 1226518487. The next prime is 1226518507. The reversal of 1226518488 is 8848156221.

1226518488 is a `hidden beast` number, since 122 + 6 + 518 + 4 + 8 + 8 = 666.

1226518488 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1226518488² = 3008695202811612288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226518487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654256 + ... + 656127.

It is an arithmetic number, because the mean of its divisors is an integer number (74528090).

Almost surely, 2^1226518488 is an apocalyptic number.

1226518488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1226518488 is an abundant number, since it is smaller than the sum of its proper divisors (2350829832).

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

1226518488 is a wasteful number, since it uses less digits than its factorization.

1226518488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310408 (or 1310401 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 1226518488 is about 35021.6859674117. The cubic root of 1226518488 is about 1070.4294104342.

The spelling of 1226518488 in words is "one billion, two hundred twenty-six million, five hundred eighteen thousand, four hundred eighty-eight".