406260 has 72 divisors (see below), whose sum is σ = 1286376. Its totient is φ = 103680.

The previous prime is 406253. The next prime is 406267. The reversal of 406260 is 62604.

406260 is a `hidden beast` number, since 40 + 626 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (406253) and next prime (406267).

It can be written as a sum of positive squares in 4 ways, for example, as 24336 + 381924 = 156^2 + 618^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406267) by changing a digit.

406260 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6630 + ... + 6690.

2⁴⁰⁶²⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643188).

406260 is an abundant number, since it is smaller than the sum of its proper divisors (880116).

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

406260 is a wasteful number, since it uses less digits than its factorization.

406260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 406260 is about 637.3852837962. The cubic root of 406260 is about 74.0630093967.

Adding to 406260 its reverse (62604), we get a palindrome (468864).

It can be divided in two parts, 406 and 260, that added together give a palindrome (666).

The spelling of 406260 in words is "four hundred six thousand, two hundred sixty".