420424488 has 96 divisors (see below), whose sum is σ = 1275824160. Its totient is φ = 123949440.

The previous prime is 420424469. The next prime is 420424559. The reversal of 420424488 is 884424024.

420424488 is a `hidden beast` number, since 4 + 204 + 2 + 448 + 8 = 666.

It is a super-2 number, since 2×420424488² = 353513500220124288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22131 + ... + 36477.

It is an arithmetic number, because the mean of its divisors is an integer number (13289835).

Almost surely, 2^420424488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420424488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637912080).

420424488 is an abundant number, since it is smaller than the sum of its proper divisors (855399672).

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

420424488 is a wasteful number, since it uses less digits than its factorization.

420424488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14407 (or 14400 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

The square root of 420424488 is about 20504.2553632167. The cubic root of 420424488 is about 749.1394503166.

The spelling of 420424488 in words is "four hundred twenty million, four hundred twenty-four thousand, four hundred eighty-eight".