406622045 has 16 divisors (see below), whose sum is σ = 508015920. Its totient is φ = 312159744.

The previous prime is 406622023. The next prime is 406622057. The reversal of 406622045 is 540226604.

406622045 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5541316 + 401080729 = 2354^2 + 20027^2 .

It is a cyclic number.

It is not a de Polignac number, because 406622045 - 2⁶ = 406621981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406621999 and 406622017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1550 + ... + 28559.

It is an arithmetic number, because the mean of its divisors is an integer number (31750995).

Almost surely, 2^406622045 is an apocalyptic number.

It is an amenable number.

406622045 is a deficient number, since it is larger than the sum of its proper divisors (101393875).

406622045 is a wasteful number, since it uses less digits than its factorization.

406622045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30224.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 406622045 is about 20164.8715592240. The cubic root of 406622045 is about 740.8500367040.

Adding to 406622045 its reverse (540226604), we get a palindrome (946848649).

The spelling of 406622045 in words is "four hundred six million, six hundred twenty-two thousand, forty-five".