406000263 has 8 divisors (see below), whose sum is σ = 541990000. Its totient is φ = 270338688.

The previous prime is 406000247. The next prime is 406000271. The reversal of 406000263 is 362000604.

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

It is not a de Polignac number, because 406000263 - 2⁴ = 406000247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406000663) 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, 79138 + ... + 84111.

It is an arithmetic number, because the mean of its divisors is an integer number (67748750).

Almost surely, 2^406000263 is an apocalyptic number.

406000263 is a deficient number, since it is larger than the sum of its proper divisors (135989737).

406000263 is a wasteful number, since it uses less digits than its factorization.

406000263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164081.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 406000263 is about 20149.4482058442. The cubic root of 406000263 is about 740.4722229406.

Adding to 406000263 its reverse (362000604), we get a palindrome (768000867).

The spelling of 406000263 in words is "four hundred six million, two hundred sixty-three", and thus it is an aban number.