1224938988 has 144 divisors (see below), whose sum is σ = 3835453440. Its totient is φ = 320982912.

The previous prime is 1224938977. The next prime is 1224938999. The reversal of 1224938988 is 8898394221.

1224938988 is a `hidden beast` number, since 12 + 249 + 389 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1224938977) and next prime (1224938999).

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 47 ways as a sum of consecutive naturals, for example, 545973 + ... + 548211.

Almost surely, 2^1224938988 is an apocalyptic number.

1224938988 is a gapful number since it is divisible by the number (18) 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 1224938988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1917726720).

1224938988 is an abundant number, since it is smaller than the sum of its proper divisors (2610514452).

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

1224938988 is a wasteful number, since it uses less digits than its factorization.

1224938988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436 (or 2431 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 1224938988 is about 34999.1283891471. The cubic root of 1224938988 is about 1069.9697164399.

The spelling of 1224938988 in words is "one billion, two hundred twenty-four million, nine hundred thirty-eight thousand, nine hundred eighty-eight".