423477445 has 4 divisors (see below), whose sum is σ = 508172940. Its totient is φ = 338781952.

The previous prime is 423477443. The next prime is 423477451. The reversal of 423477445 is 544774324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147452449 + 276024996 = 12143^2 + 16614^2 .

It is a cyclic number.

It is not a de Polignac number, because 423477445 - 2¹ = 423477443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423477398 and 423477407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423477443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42347740 + ... + 42347749.

It is an arithmetic number, because the mean of its divisors is an integer number (127043235).

Almost surely, 2^423477445 is an apocalyptic number.

It is an amenable number.

423477445 is a deficient number, since it is larger than the sum of its proper divisors (84695495).

423477445 is an equidigital number, since it uses as much as digits as its factorization.

423477445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84695494.

The product of its digits is 376320, while the sum is 40.

The square root of 423477445 is about 20578.5676129317. The cubic root of 423477445 is about 750.9483972551.

The spelling of 423477445 in words is "four hundred twenty-three million, four hundred seventy-seven thousand, four hundred forty-five".