1240244120 has 32 divisors (see below), whose sum is σ = 2794947120. Its totient is φ = 495315840.

The previous prime is 1240244113. The next prime is 1240244143. The reversal of 1240244120 is 214420421.

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

It is a junction number, because it is equal to n+sod(n) for n = 1240244092 and 1240244101.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 49830.

Almost surely, 2^1240244120 is an apocalyptic number.

1240244120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240244120 is an abundant number, since it is smaller than the sum of its proper divisors (1554703000).

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

1240244120 is a wasteful number, since it uses less digits than its factorization.

1240244120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48875 (or 48871 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1240244120 is about 35217.0998238072. The cubic root of 1240244120 is about 1074.4075682892.

Adding to 1240244120 its reverse (214420421), we get a palindrome (1454664541).

The spelling of 1240244120 in words is "one billion, two hundred forty million, two hundred forty-four thousand, one hundred twenty".