423509038 has 4 divisors (see below), whose sum is σ = 635263560. Its totient is φ = 211754518.

The previous prime is 423509033. The next prime is 423509039. The reversal of 423509038 is 830905324.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 423508994 and 423509012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423509033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105877258 + ... + 105877261.

It is an arithmetic number, because the mean of its divisors is an integer number (158815890).

Almost surely, 2^423509038 is an apocalyptic number.

423509038 is a deficient number, since it is larger than the sum of its proper divisors (211754522).

423509038 is a wasteful number, since it uses less digits than its factorization.

423509038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211754521.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 423509038 is about 20579.3352176400. The cubic root of 423509038 is about 750.9670713096.

The spelling of 423509038 in words is "four hundred twenty-three million, five hundred nine thousand, thirty-eight".