420330534 has 16 divisors (see below), whose sum is σ = 905327472. Its totient is φ = 129332448.

The previous prime is 420330511. The next prime is 420330539. The reversal of 420330534 is 435033024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420330539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2694349 + ... + 2694504.

It is an arithmetic number, because the mean of its divisors is an integer number (56582967).

Almost surely, 2^420330534 is an apocalyptic number.

420330534 is an abundant number, since it is smaller than the sum of its proper divisors (484996938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420330534 is a wasteful number, since it uses less digits than its factorization.

420330534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388871.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 420330534 is about 20501.9641498077. The cubic root of 420330534 is about 749.0836417282.

Adding to 420330534 its reverse (435033024), we get a palindrome (855363558).

The spelling of 420330534 in words is "four hundred twenty million, three hundred thirty thousand, five hundred thirty-four".