406284393 has 8 divisors (see below), whose sum is σ = 541844800. Its totient is φ = 270790128.

The previous prime is 406284349. The next prime is 406284433. The reversal of 406284393 is 393482604.

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

It is a de Polignac number, because none of the positive numbers 2^k-406284393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (406280393) 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, 228 + ... + 28506.

It is an arithmetic number, because the mean of its divisors is an integer number (67730600).

Almost surely, 2^406284393 is an apocalyptic number.

It is an amenable number.

406284393 is a deficient number, since it is larger than the sum of its proper divisors (135560407).

406284393 is a wasteful number, since it uses less digits than its factorization.

406284393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33071.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 406284393 is about 20156.4975380149. The cubic root of 406284393 is about 740.6449168459.

The spelling of 406284393 in words is "four hundred six million, two hundred eighty-four thousand, three hundred ninety-three".