421532012 has 24 divisors (see below), whose sum is σ = 810628560. Its totient is φ = 190204160.

The previous prime is 421532011. The next prime is 421532039. The reversal of 421532012 is 210235124.

It is not an unprimeable number, because it can be changed into a prime (421532011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28937 + ... + 40992.

It is an arithmetic number, because the mean of its divisors is an integer number (33776190).

Almost surely, 2^421532012 is an apocalyptic number.

It is an amenable number.

421532012 is a deficient number, since it is larger than the sum of its proper divisors (389096548).

421532012 is a wasteful number, since it uses less digits than its factorization.

421532012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70081 (or 70079 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421532012 is about 20531.2447747330. The cubic root of 421532012 is about 749.7966927450.

Adding to 421532012 its reverse (210235124), we get a palindrome (631767136).

The spelling of 421532012 in words is "four hundred twenty-one million, five hundred thirty-two thousand, twelve".