1241283720 has 64 divisors (see below), whose sum is σ = 3728592000. Its totient is φ = 330587648.

The previous prime is 1241283697. The next prime is 1241283721. The reversal of 1241283720 is 273821421.

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

It is not an unprimeable number, because it can be changed into a prime (1241283721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94516 + ... + 106844.

It is an arithmetic number, because the mean of its divisors is an integer number (58259250).

Almost surely, 2^1241283720 is an apocalyptic number.

1241283720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241283720 is an abundant number, since it is smaller than the sum of its proper divisors (2487308280).

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

1241283720 is a wasteful number, since it uses less digits than its factorization.

1241283720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13182 (or 13178 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1241283720 is about 35231.8566073376. The cubic root of 1241283720 is about 1074.7076818313.

The spelling of 1241283720 in words is "one billion, two hundred forty-one million, two hundred eighty-three thousand, seven hundred twenty".