423915445 has 8 divisors (see below), whose sum is σ = 514827936. Its totient is φ = 335046096.

The previous prime is 423915431. The next prime is 423915467. The reversal of 423915445 is 544519324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423915445 - 2¹⁷ = 423784373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510327 + ... + 511156.

It is an arithmetic number, because the mean of its divisors is an integer number (64353492).

Almost surely, 2^423915445 is an apocalyptic number.

It is an amenable number.

423915445 is a deficient number, since it is larger than the sum of its proper divisors (90912491).

423915445 is a wasteful number, since it uses less digits than its factorization.

423915445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021571.

The product of its digits is 86400, while the sum is 37.

The square root of 423915445 is about 20589.2070026993. The cubic root of 423915445 is about 751.2072084138.

The spelling of 423915445 in words is "four hundred twenty-three million, nine hundred fifteen thousand, four hundred forty-five".