420420484 has 24 divisors (see below), whose sum is σ = 804511008. Its totient is φ = 190650240.

The previous prime is 420420461. The next prime is 420420487. The reversal of 420420484 is 484024024.

It is not an unprimeable number, because it can be changed into a prime (420420487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8019 + ... + 30085.

It is an arithmetic number, because the mean of its divisors is an integer number (33521292).

Almost surely, 2^420420484 is an apocalyptic number.

420420484 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420420484 is a deficient number, since it is larger than the sum of its proper divisors (384090524).

420420484 is a wasteful number, since it uses less digits than its factorization.

420420484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22515 (or 22513 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 420420484 is about 20504.1577247152. The cubic root of 420420484 is about 749.1370721140.

The spelling of 420420484 in words is "four hundred twenty million, four hundred twenty thousand, four hundred eighty-four".