420323612 has 12 divisors (see below), whose sum is σ = 738724896. Its totient is φ = 209259360.

The previous prime is 420323609. The next prime is 420323627. The reversal of 420323612 is 216323024.

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, 224564 + ... + 226427.

It is an arithmetic number, because the mean of its divisors is an integer number (61560408).

Almost surely, 2^420323612 is an apocalyptic number.

It is an amenable number.

420323612 is a deficient number, since it is larger than the sum of its proper divisors (318401284).

420323612 is a wasteful number, since it uses less digits than its factorization.

420323612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451228 (or 451226 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 420323612 is about 20501.7953360187. The cubic root of 420323612 is about 749.0795297378.

Adding to 420323612 its reverse (216323024), we get a palindrome (636646636).

The spelling of 420323612 in words is "four hundred twenty million, three hundred twenty-three thousand, six hundred twelve".