1325640210 has 32 divisors (see below), whose sum is σ = 3188382912. Its totient is φ = 352743360.

The previous prime is 1325640149. The next prime is 1325640247. The reversal of 1325640210 is 120465231.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 33301 + ... + 61320.

It is an arithmetic number, because the mean of its divisors is an integer number (99636966).

Almost surely, 2^1325640210 is an apocalyptic number.

1325640210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1325640210 is an abundant number, since it is smaller than the sum of its proper divisors (1862742702).

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

1325640210 is a wasteful number, since it uses less digits than its factorization.

1325640210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95098.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1325640210 is about 36409.3423450630. The cubic root of 1325640210 is about 1098.5214874474.

The spelling of 1325640210 in words is "one billion, three hundred twenty-five million, six hundred forty thousand, two hundred ten".