1325214660 has 384 divisors, whose sum is σ = 5037096960. Its totient is φ = 251942400.

The previous prime is 1325214659. The next prime is 1325214673. The reversal of 1325214660 is 664125231.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2720937 + ... + 2721423.

It is an arithmetic number, because the mean of its divisors is an integer number (13117440).

Almost surely, 2^1325214660 is an apocalyptic number.

1325214660 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 1325214660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518548480).

1325214660 is an abundant number, since it is smaller than the sum of its proper divisors (3711882300).

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

1325214660 is a wasteful number, since it uses less digits than its factorization.

1325214660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1325214660 is about 36403.4979088549. The cubic root of 1325214660 is about 1098.4039276836.

Adding to 1325214660 its reverse (664125231), we get a palindrome (1989339891).

The spelling of 1325214660 in words is "one billion, three hundred twenty-five million, two hundred fourteen thousand, six hundred sixty".