420200444 has 12 divisors (see below), whose sum is σ = 741859104. Its totient is φ = 208240704.

The previous prime is 420200423. The next prime is 420200467. The reversal of 420200444 is 444002024.

It is a super-3 number, since 3×420200444³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464372 + ... + 465275.

It is an arithmetic number, because the mean of its divisors is an integer number (61821592).

Almost surely, 2^420200444 is an apocalyptic number.

It is an amenable number.

420200444 is a deficient number, since it is larger than the sum of its proper divisors (321658660).

420200444 is a wasteful number, since it uses less digits than its factorization.

420200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929764 (or 929762 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 420200444 is about 20498.7912814390. The cubic root of 420200444 is about 749.0063546585.

Adding to 420200444 its reverse (444002024), we get a palindrome (864202468).

The spelling of 420200444 in words is "four hundred twenty million, two hundred thousand, four hundred forty-four".