423445104 has 40 divisors (see below), whose sum is σ = 1215445520. Its totient is φ = 141148224.

The previous prime is 423445097. The next prime is 423445147. The reversal of 423445104 is 401544324.

It is a happy number.

It is a super-2 number, since 2×423445104² = 358611512203141632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489667 + ... + 490530.

It is an arithmetic number, because the mean of its divisors is an integer number (30386138).

Almost surely, 2^423445104 is an apocalyptic number.

It is an amenable number.

423445104 is an abundant number, since it is smaller than the sum of its proper divisors (792000416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423445104 is a wasteful number, since it uses less digits than its factorization.

423445104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980214 (or 980202 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 423445104 is about 20577.7818046552. The cubic root of 423445104 is about 750.9292801091.

Adding to 423445104 its reverse (401544324), we get a palindrome (824989428).

The spelling of 423445104 in words is "four hundred twenty-three million, four hundred forty-five thousand, one hundred four".