420443414 has 4 divisors (see below), whose sum is σ = 630665124. Its totient is φ = 210221706.

The previous prime is 420443407. The next prime is 420443417. The reversal of 420443414 is 414344024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×420443414³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420443417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110852 + ... + 105110855.

It is an arithmetic number, because the mean of its divisors is an integer number (157666281).

Almost surely, 2^420443414 is an apocalyptic number.

420443414 is a deficient number, since it is larger than the sum of its proper divisors (210221710).

420443414 is a wasteful number, since it uses less digits than its factorization.

420443414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210221709.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 420443414 is about 20504.7168719785. The cubic root of 420443414 is about 749.1506913368.

Adding to 420443414 its reverse (414344024), we get a palindrome (834787438).

The spelling of 420443414 in words is "four hundred twenty million, four hundred forty-three thousand, four hundred fourteen".