1341445220 has 48 divisors (see below), whose sum is σ = 2994176640. Its totient is φ = 503387136.

The previous prime is 1341445219. The next prime is 1341445241. The reversal of 1341445220 is 225441431.

It is a self number, because there is not a number n which added to its sum of digits gives 1341445220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22004 + ... + 56276.

It is an arithmetic number, because the mean of its divisors is an integer number (62378680).

Almost surely, 2^1341445220 is an apocalyptic number.

1341445220 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 1341445220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497088320).

1341445220 is an abundant number, since it is smaller than the sum of its proper divisors (1652731420).

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

1341445220 is a wasteful number, since it uses less digits than its factorization.

1341445220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34404 (or 34402 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1341445220 is about 36625.7453166485. The cubic root of 1341445220 is about 1102.8699765934.

Adding to 1341445220 its reverse (225441431), we get a palindrome (1566886651).

The spelling of 1341445220 in words is "one billion, three hundred forty-one million, four hundred forty-five thousand, two hundred twenty".