1242012260 has 24 divisors (see below), whose sum is σ = 2626995840. Its totient is φ = 493229664.

The previous prime is 1242012253. The next prime is 1242012283. The reversal of 1242012260 is 622102421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 220604 + ... + 226163.

It is an arithmetic number, because the mean of its divisors is an integer number (109458160).

Almost surely, 2^1242012260 is an apocalyptic number.

1242012260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242012260 is an abundant number, since it is smaller than the sum of its proper divisors (1384983580).

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

1242012260 is a wasteful number, since it uses less digits than its factorization.

1242012260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446915 (or 446913 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1242012260 is about 35242.1943130674. The cubic root of 1242012260 is about 1074.9178981826.

Adding to 1242012260 its reverse (622102421), we get a palindrome (1864114681).

The spelling of 1242012260 in words is "one billion, two hundred forty-two million, twelve thousand, two hundred sixty".