1224027252 has 108 divisors (see below), whose sum is σ = 3624156900. Its totient is φ = 347300352.

The previous prime is 1224027227. The next prime is 1224027257. The reversal of 1224027252 is 2527204221.

1224027252 is a `hidden beast` number, since 1 + 2 + 2 + 402 + 7 + 252 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 145298916 + 1078728336 = 12054^2 + 32844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224027257) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 260508 + ... + 265164.

Almost surely, 2^1224027252 is an apocalyptic number.

1224027252 is a gapful number since it is divisible by the number (12) 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 1224027252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812078450).

1224027252 is an abundant number, since it is smaller than the sum of its proper divisors (2400129648).

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

1224027252 is a wasteful number, since it uses less digits than its factorization.

1224027252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830 (or 4818 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 1224027252 is about 34986.1008401908. The cubic root of 1224027252 is about 1069.7041870131.

The spelling of 1224027252 in words is "one billion, two hundred twenty-four million, twenty-seven thousand, two hundred fifty-two".