320788741 has 12 divisors (see below), whose sum is σ = 401868012. Its totient is φ = 253810368.

The previous prime is 320788733. The next prime is 320788763. The reversal of 320788741 is 147887023.

It can be written as a sum of positive squares in 2 ways, for example, as 33350625 + 287438116 = 5775^2 + 16954^2 .

It is not a de Polignac number, because 320788741 - 2³ = 320788733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320788694 and 320788703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320788711) 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, 251160 + ... + 252433.

It is an arithmetic number, because the mean of its divisors is an integer number (33489001).

Almost surely, 2^320788741 is an apocalyptic number.

It is an amenable number.

320788741 is a deficient number, since it is larger than the sum of its proper divisors (81079271).

320788741 is a wasteful number, since it uses less digits than its factorization.

320788741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503620 (or 503613 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 320788741 is about 17910.5762330529. The cubic root of 320788741 is about 684.5518876419.

The spelling of 320788741 in words is "three hundred twenty million, seven hundred eighty-eight thousand, seven hundred forty-one".