1242411220 has 24 divisors (see below), whose sum is σ = 2614971744. Its totient is φ = 495839136.

The previous prime is 1242411173. The next prime is 1242411223. The reversal of 1242411220 is 221142421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242411223) 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 7 ways as a sum of consecutive naturals, for example, 61254 + ... + 78973.

It is an arithmetic number, because the mean of its divisors is an integer number (108957156).

Almost surely, 2^1242411220 is an apocalyptic number.

1242411220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242411220 is an abundant number, since it is smaller than the sum of its proper divisors (1372560524).

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

1242411220 is a wasteful number, since it uses less digits than its factorization.

1242411220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140679 (or 140677 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1242411220 is about 35247.8541190808. The cubic root of 1242411220 is about 1075.0329811406.

Adding to 1242411220 its reverse (221142421), we get a palindrome (1463553641).

The spelling of 1242411220 in words is "one billion, two hundred forty-two million, four hundred eleven thousand, two hundred twenty".