420144212 has 12 divisors (see below), whose sum is σ = 740122656. Its totient is φ = 208680600.

The previous prime is 420144211. The next prime is 420144223. The reversal of 420144212 is 212441024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420144211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347198 + ... + 348405.

It is an arithmetic number, because the mean of its divisors is an integer number (61676888).

Almost surely, 2^420144212 is an apocalyptic number.

It is an amenable number.

420144212 is a deficient number, since it is larger than the sum of its proper divisors (319978444).

420144212 is a wasteful number, since it uses less digits than its factorization.

420144212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695758 (or 695756 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 420144212 is about 20497.4196424818. The cubic root of 420144212 is about 748.9729420298.

Adding to 420144212 its reverse (212441024), we get a palindrome (632585236).

The spelling of 420144212 in words is "four hundred twenty million, one hundred forty-four thousand, two hundred twelve".