420334453 has 16 divisors (see below), whose sum is σ = 546840576. Its totient is φ = 313291440.

The previous prime is 420334441. The next prime is 420334463. The reversal of 420334453 is 354433024.

It is not a de Polignac number, because 420334453 - 2²¹ = 418237301 is a prime.

It is a super-3 number, since 3×420334453³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420334403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116901 + ... + 120442.

It is an arithmetic number, because the mean of its divisors is an integer number (34177536).

Almost surely, 2^420334453 is an apocalyptic number.

It is an amenable number.

420334453 is a deficient number, since it is larger than the sum of its proper divisors (126506123).

420334453 is a wasteful number, since it uses less digits than its factorization.

420334453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237384.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 420334453 is about 20502.0597257934. The cubic root of 420334453 is about 749.0859697768.

Adding to 420334453 its reverse (354433024), we get a palindrome (774767477).

The spelling of 420334453 in words is "four hundred twenty million, three hundred thirty-four thousand, four hundred fifty-three".