320460 has 72 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 72576.

The previous prime is 320449. The next prime is 320471. The reversal of 320460 is 64023.

It is an interprime number because it is at equal distance from previous prime (320449) and next prime (320471).

It is a super-2 number, since 2×320460² = 205389223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2886 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (14630).

2³²⁰⁴⁶⁰ is an apocalyptic number.

320460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526680).

320460 is an abundant number, since it is smaller than the sum of its proper divisors (732900).

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

320460 is a wasteful number, since it uses less digits than its factorization.

320460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320460 is about 566.0918653364. The cubic root of 320460 is about 68.4317967141.

Adding to 320460 its reverse (64023), we get a palindrome (384483).

It can be divided in two parts, 320 and 460, that added together give a triangular number (780 = T₃₉).

The spelling of 320460 in words is "three hundred twenty thousand, four hundred sixty".