1341244140 has 96 divisors (see below), whose sum is σ = 3888138240. Its totient is φ = 345100800.

The previous prime is 1341244139. The next prime is 1341244147. The reversal of 1341244140 is 414421431.

It is a self number, because there is not a number n which added to its sum of digits gives 1341244140.

It is not an unprimeable number, because it can be changed into a prime (1341244147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778480 + ... + 780200.

It is an arithmetic number, because the mean of its divisors is an integer number (40501440).

Almost surely, 2^1341244140 is an apocalyptic number.

1341244140 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 1341244140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944069120).

1341244140 is an abundant number, since it is smaller than the sum of its proper divisors (2546894100).

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

1341244140 is a wasteful number, since it uses less digits than its factorization.

1341244140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1341244140 is about 36623.0001501788. Note that the first 3 decimals coincide. The cubic root of 1341244140 is about 1102.8148678263.

Adding to 1341244140 its reverse (414421431), we get a palindrome (1755665571).

The spelling of 1341244140 in words is "one billion, three hundred forty-one million, two hundred forty-four thousand, one hundred forty".