423503494 has 4 divisors (see below), whose sum is σ = 635255244. Its totient is φ = 211751746.

The previous prime is 423503491. The next prime is 423503543. The reversal of 423503494 is 494305324.

It is a happy number.

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

It is a super-3 number, since 3×423503494³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423503491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105875872 + ... + 105875875.

It is an arithmetic number, because the mean of its divisors is an integer number (158813811).

Almost surely, 2^423503494 is an apocalyptic number.

423503494 is a deficient number, since it is larger than the sum of its proper divisors (211751750).

423503494 is a wasteful number, since it uses less digits than its factorization.

423503494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211751749.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 423503494 is about 20579.2005189706. The cubic root of 423503494 is about 750.9637944180.

The spelling of 423503494 in words is "four hundred twenty-three million, five hundred three thousand, four hundred ninety-four".