406431275 has 12 divisors (see below), whose sum is σ = 525887472. Its totient is φ = 311007840.

The previous prime is 406431271. The next prime is 406431307. The reversal of 406431275 is 572134604.

It is not a de Polignac number, because 406431275 - 2² = 406431271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406431271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352844 + ... + 353993.

It is an arithmetic number, because the mean of its divisors is an integer number (43823956).

Almost surely, 2^406431275 is an apocalyptic number.

406431275 is a deficient number, since it is larger than the sum of its proper divisors (119456197).

406431275 is a wasteful number, since it uses less digits than its factorization.

406431275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706870 (or 706865 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 406431275 is about 20160.1407485166. The cubic root of 406431275 is about 740.7341599979.

Adding to 406431275 its reverse (572134604), we get a palindrome (978565879).

The spelling of 406431275 in words is "four hundred six million, four hundred thirty-one thousand, two hundred seventy-five".