420354212 has 12 divisors (see below), whose sum is σ = 736912176. Its totient is φ = 209807880.

The previous prime is 420354211. The next prime is 420354281. The reversal of 420354212 is 212453024.

It is a happy number.

It is a super-2 number, since 2×420354212² = 353395327092281888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420354211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89738 + ... + 94305.

It is an arithmetic number, because the mean of its divisors is an integer number (61409348).

Almost surely, 2^420354212 is an apocalyptic number.

It is an amenable number.

420354212 is a deficient number, since it is larger than the sum of its proper divisors (316557964).

420354212 is a wasteful number, since it uses less digits than its factorization.

420354212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184618 (or 184616 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 420354212 is about 20502.5415985433. The cubic root of 420354212 is about 749.0977072219.

The spelling of 420354212 in words is "four hundred twenty million, three hundred fifty-four thousand, two hundred twelve".