1241218560 has 160 divisors (see below), whose sum is σ = 4105585440. Its totient is φ = 319520768.

The previous prime is 1241218549. The next prime is 1241218597. The reversal of 1241218560 is 658121421.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219934 + ... + 225506.

It is an arithmetic number, because the mean of its divisors is an integer number (25659909).

Almost surely, 2^1241218560 is an apocalyptic number.

1241218560 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 1241218560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2052792720).

1241218560 is an abundant number, since it is smaller than the sum of its proper divisors (2864366880).

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

1241218560 is an equidigital number, since it uses as much as digits as its factorization.

1241218560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628 (or 5612 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1241218560 is about 35230.9318639175. The cubic root of 1241218560 is about 1074.6888762521.

Adding to 1241218560 its reverse (658121421), we get a palindrome (1899339981).

The spelling of 1241218560 in words is "one billion, two hundred forty-one million, two hundred eighteen thousand, five hundred sixty".