1325609790 has 32 divisors (see below), whose sum is σ = 3202826400. Its totient is φ = 351122304.

The previous prime is 1325609783. The next prime is 1325609797. The reversal of 1325609790 is 979065231.

It is an interprime number because it is at equal distance from previous prime (1325609783) and next prime (1325609797).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325609797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143809 + ... + 152748.

It is an arithmetic number, because the mean of its divisors is an integer number (100088325).

Almost surely, 2^1325609790 is an apocalyptic number.

1325609790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1325609790 is an abundant number, since it is smaller than the sum of its proper divisors (1877216610).

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

1325609790 is a wasteful number, since it uses less digits than its factorization.

1325609790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296716.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 1325609790 is about 36408.9245927424. The cubic root of 1325609790 is about 1098.5130846448.

The spelling of 1325609790 in words is "one billion, three hundred twenty-five million, six hundred nine thousand, seven hundred ninety".