423211005 has 48 divisors (see below), whose sum is σ = 887687424. Its totient is φ = 182085120.

The previous prime is 423210943. The next prime is 423211021. The reversal of 423211005 is 500112324.

It is not a de Polignac number, because 423211005 - 2¹² = 423206909 is a prime.

It is a super-2 number, since 2×423211005² = 358215109506220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34161 + ... + 44870.

It is an arithmetic number, because the mean of its divisors is an integer number (18493488).

Almost surely, 2^423211005 is an apocalyptic number.

423211005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423211005 is an abundant number, since it is smaller than the sum of its proper divisors (464476419).

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

423211005 is a wasteful number, since it uses less digits than its factorization.

423211005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79066 (or 79063 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 423211005 is about 20572.0928687385. The cubic root of 423211005 is about 750.7908724013.

Adding to 423211005 its reverse (500112324), we get a palindrome (923323329).

The spelling of 423211005 in words is "four hundred twenty-three million, two hundred eleven thousand, five".