1241403440 has 40 divisors (see below), whose sum is σ = 2907053520. Its totient is φ = 492984576.

The previous prime is 1241403431. The next prime is 1241403479. The reversal of 1241403440 is 443041421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44699 + ... + 66938.

It is an arithmetic number, because the mean of its divisors is an integer number (72676338).

Almost surely, 2^1241403440 is an apocalyptic number.

1241403440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241403440 is an abundant number, since it is smaller than the sum of its proper divisors (1665650080).

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

1241403440 is a wasteful number, since it uses less digits than its factorization.

1241403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111789 (or 111783 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1241403440 is about 35233.5555969022. Note that the first 4 decimals coincide. The cubic root of 1241403440 is about 1074.7422320488.

Adding to 1241403440 its reverse (443041421), we get a palindrome (1684444861).

The spelling of 1241403440 in words is "one billion, two hundred forty-one million, four hundred three thousand, four hundred forty".