406321055 has 16 divisors (see below), whose sum is σ = 567756864. Its totient is φ = 273361920.

The previous prime is 406321049. The next prime is 406321057. The reversal of 406321055 is 550123604.

It is not a de Polignac number, because 406321055 - 2²⁴ = 389543839 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 (406321057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107666 + ... + 111375.

It is an arithmetic number, because the mean of its divisors is an integer number (35484804).

Almost surely, 2^406321055 is an apocalyptic number.

406321055 is a deficient number, since it is larger than the sum of its proper divisors (161435809).

406321055 is a wasteful number, since it uses less digits than its factorization.

406321055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219106.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 406321055 is about 20157.4069512921. The cubic root of 406321055 is about 740.6671941043.

Adding to 406321055 its reverse (550123604), we get a palindrome (956444659).

The spelling of 406321055 in words is "four hundred six million, three hundred twenty-one thousand, fifty-five".