1325649632 has 24 divisors (see below), whose sum is σ = 2645629056. Its totient is φ = 653743872.

The previous prime is 1325649631. The next prime is 1325649649. The reversal of 1325649632 is 2369465231.

It is a self number, because there is not a number n which added to its sum of digits gives 1325649632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325649631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281408 + ... + 286079.

It is an arithmetic number, because the mean of its divisors is an integer number (110234544).

Almost surely, 2^1325649632 is an apocalyptic number.

It is an amenable number.

1325649632 is a deficient number, since it is larger than the sum of its proper divisors (1319979424).

1325649632 is an equidigital number, since it uses as much as digits as its factorization.

1325649632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567570 (or 567562 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The square root of 1325649632 is about 36409.4717347011. The cubic root of 1325649632 is about 1098.5240900251.

The spelling of 1325649632 in words is "one billion, three hundred twenty-five million, six hundred forty-nine thousand, six hundred thirty-two".