1330244420 has 36 divisors (see below), whose sum is σ = 2823008580. Its totient is φ = 526537728.

The previous prime is 1330244417. The next prime is 1330244429. The reversal of 1330244420 is 244420331.

It can be written as a sum of positive squares in 6 ways, for example, as 51609856 + 1278634564 = 7184^2 + 35758^2 .

It is a super-2 number, since 2×1330244420² = 3539100433882272800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330244429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184646 + ... + 191714.

It is an arithmetic number, because the mean of its divisors is an integer number (78416905).

Almost surely, 2^1330244420 is an apocalyptic number.

1330244420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330244420 is an abundant number, since it is smaller than the sum of its proper divisors (1492764160).

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

1330244420 is an equidigital number, since it uses as much as digits as its factorization.

1330244420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272 (or 7173 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1330244420 is about 36472.5159537973. The cubic root of 1330244420 is about 1099.7918118401.

Adding to 1330244420 its reverse (244420331), we get a palindrome (1574664751).

The spelling of 1330244420 in words is "one billion, three hundred thirty million, two hundred forty-four thousand, four hundred twenty".