1224116280 has 256 divisors, whose sum is σ = 4395254400. Its totient is φ = 301916160.

The previous prime is 1224116239. The next prime is 1224116293. The reversal of 1224116280 is 826114221.

1224116280 is a `hidden beast` number, since 1 + 2 + 24 + 11 + 628 + 0 = 666.

It is a super-2 number, since 2×1224116280² = 2996921333922076800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1119414 + ... + 1120506.

Almost surely, 2^1224116280 is an apocalyptic number.

1224116280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224116280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2197627200).

1224116280 is an abundant number, since it is smaller than the sum of its proper divisors (3171138120).

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

1224116280 is a wasteful number, since it uses less digits than its factorization.

1224116280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1224116280 is about 34987.3731508955. The cubic root of 1224116280 is about 1069.7301208898.

The spelling of 1224116280 in words is "one billion, two hundred twenty-four million, one hundred sixteen thousand, two hundred eighty".