420534930 has 16 divisors (see below), whose sum is σ = 1009283904. Its totient is φ = 112142640.

The previous prime is 420534911. The next prime is 420534937. The reversal of 420534930 is 39435024.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14017831 = 420534930 / (4 + 2 + 0 + 5 + 3 + 4 + 9 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (420534937) 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, 7008886 + ... + 7008945.

It is an arithmetic number, because the mean of its divisors is an integer number (63080244).

Almost surely, 2^420534930 is an apocalyptic number.

420534930 is an abundant number, since it is smaller than the sum of its proper divisors (588748974).

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

420534930 is a wasteful number, since it uses less digits than its factorization.

420534930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14017841.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 420534930 is about 20506.9483346499. The cubic root of 420534930 is about 749.2050421315.

Adding to 420534930 its reverse (39435024), we get a palindrome (459969954).

The spelling of 420534930 in words is "four hundred twenty million, five hundred thirty-four thousand, nine hundred thirty".