1242298860 has 48 divisors (see below), whose sum is σ = 3794660352. Its totient is φ = 301163200.

The previous prime is 1242298829. The next prime is 1242298861. The reversal of 1242298860 is 688922421.

It is not an unprimeable number, because it can be changed into a prime (1242298861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940476 + ... + 941795.

It is an arithmetic number, because the mean of its divisors is an integer number (79055424).

Almost surely, 2^1242298860 is an apocalyptic number.

1242298860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242298860 is an abundant number, since it is smaller than the sum of its proper divisors (2552361492).

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

1242298860 is a wasteful number, since it uses less digits than its factorization.

1242298860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882294 (or 1882292 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1242298860 is about 35246.2602271503. The cubic root of 1242298860 is about 1075.0005725614. Note that the first 3 decimals are identical.

The spelling of 1242298860 in words is "one billion, two hundred forty-two million, two hundred ninety-eight thousand, eight hundred sixty".