320403061 has 8 divisors (see below), whose sum is σ = 367927200. Its totient is φ = 275945040.

The previous prime is 320403053. The next prime is 320403067. The reversal of 320403061 is 160304023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320403061 - 2³ = 320403053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320403067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766306 + ... + 766723.

It is an arithmetic number, because the mean of its divisors is an integer number (45990900).

Almost surely, 2^320403061 is an apocalyptic number.

It is an amenable number.

320403061 is a deficient number, since it is larger than the sum of its proper divisors (47524139).

320403061 is a wasteful number, since it uses less digits than its factorization.

320403061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533059.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320403061 is about 17899.8061721349. The cubic root of 320403061 is about 684.2774351052.

Adding to 320403061 its reverse (160304023), we get a palindrome (480707084).

The spelling of 320403061 in words is "three hundred twenty million, four hundred three thousand, sixty-one".