420543464 has 32 divisors (see below), whose sum is σ = 862043040. Its totient is φ = 190747200.

The previous prime is 420543463. The next prime is 420543481. The reversal of 420543464 is 464345024.

It is a super-2 number, since 2×420543464² = 353713610226238592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420543464.

It is not an unprimeable number, because it can be changed into a prime (420543463) 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, 38342 + ... + 48074.

It is an arithmetic number, because the mean of its divisors is an integer number (26938845).

Almost surely, 2^420543464 is an apocalyptic number.

420543464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420543464 is an abundant number, since it is smaller than the sum of its proper divisors (441499576).

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

420543464 is a wasteful number, since it uses less digits than its factorization.

420543464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10241 (or 10237 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 420543464 is about 20507.1564094099. The cubic root of 420543464 is about 749.2101100201.

Adding to 420543464 its reverse (464345024), we get a palindrome (884888488).

The spelling of 420543464 in words is "four hundred twenty million, five hundred forty-three thousand, four hundred sixty-four".