423220524 has 48 divisors (see below), whose sum is σ = 1018096128. Its totient is φ = 136762048.

The previous prime is 423220517. The next prime is 423220531. The reversal of 423220524 is 425022324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (423220517) and next prime (423220531).

It is a super-2 number, since 2×423220524² = 358231223869669152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423220494 and 423220503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56842 + ... + 63854.

It is an arithmetic number, because the mean of its divisors is an integer number (21210336).

Almost surely, 2^423220524 is an apocalyptic number.

It is an amenable number.

423220524 is an abundant number, since it is smaller than the sum of its proper divisors (594875604).

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

423220524 is a wasteful number, since it uses less digits than its factorization.

423220524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174 (or 7172 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 423220524 is about 20572.3242245498. The cubic root of 423220524 is about 750.7965013702.

Adding to 423220524 its reverse (425022324), we get a palindrome (848242848).

The spelling of 423220524 in words is "four hundred twenty-three million, two hundred twenty thousand, five hundred twenty-four".