1242233280 has 224 divisors, whose sum is σ = 4456054080. Its totient is φ = 325693440.

The previous prime is 1242233263. The next prime is 1242233287. The reversal of 1242233280 is 823322421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242233287) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 525862 + ... + 528218.

Almost surely, 2^1242233280 is an apocalyptic number.

1242233280 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 1242233280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228027040).

1242233280 is an abundant number, since it is smaller than the sum of its proper divisors (3213820800).

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

1242233280 is a wasteful number, since it uses less digits than its factorization.

1242233280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1242233280 is about 35245.3299034071. The cubic root of 1242233280 is about 1074.9816560778.

The spelling of 1242233280 in words is "one billion, two hundred forty-two million, two hundred thirty-three thousand, two hundred eighty".