423444502 has 16 divisors (see below), whose sum is σ = 702514512. Its totient is φ = 190153440.

The previous prime is 423444499. The next prime is 423444523. The reversal of 423444502 is 205444324.

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, 219124 + ... + 221047.

It is an arithmetic number, because the mean of its divisors is an integer number (43907157).

Almost surely, 2^423444502 is an apocalyptic number.

423444502 is a deficient number, since it is larger than the sum of its proper divisors (279070010).

423444502 is a wasteful number, since it uses less digits than its factorization.

423444502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440223.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 423444502 is about 20577.7671772231. The cubic root of 423444502 is about 750.9289242506.

Adding to 423444502 its reverse (205444324), we get a palindrome (628888826).

The spelling of 423444502 in words is "four hundred twenty-three million, four hundred forty-four thousand, five hundred two".