421524212 has 12 divisors (see below), whose sum is σ = 738036096. Its totient is φ = 210656760.

The previous prime is 421524209. The next prime is 421524221. The reversal of 421524212 is 212425124.

It is a super-2 number, since 2×421524212² = 355365322604441888, 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 3 ways as a sum of consecutive naturals, for example, 16964 + ... + 33627.

It is an arithmetic number, because the mean of its divisors is an integer number (61503008).

Almost surely, 2^421524212 is an apocalyptic number.

It is an amenable number.

421524212 is a deficient number, since it is larger than the sum of its proper divisors (316511884).

421524212 is a wasteful number, since it uses less digits than its factorization.

421524212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52678 (or 52676 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 421524212 is about 20531.0548194680. The cubic root of 421524212 is about 749.7920679873.

Adding to 421524212 its reverse (212425124), we get a palindrome (633949336).

It can be divided in two parts, 42152 and 4212, that added together give a palindrome (46364).

The spelling of 421524212 in words is "four hundred twenty-one million, five hundred twenty-four thousand, two hundred twelve".