1241321730 has 128 divisors (see below), whose sum is σ = 3443337216. Its totient is φ = 283430400.

The previous prime is 1241321729. The next prime is 1241321761. The reversal of 1241321730 is 371231421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241321730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 507310 + ... + 509750.

It is an arithmetic number, because the mean of its divisors is an integer number (26901072).

Almost surely, 2^1241321730 is an apocalyptic number.

1241321730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241321730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721668608).

1241321730 is an abundant number, since it is smaller than the sum of its proper divisors (2202015486).

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

1241321730 is a wasteful number, since it uses less digits than its factorization.

1241321730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1241321730 is about 35232.3960297905. The cubic root of 1241321730 is about 1074.7186514486.

It can be divided in two parts, 12413 and 21730, that added together give a palindrome (34143).

The spelling of 1241321730 in words is "one billion, two hundred forty-one million, three hundred twenty-one thousand, seven hundred thirty".