420043430 has 8 divisors (see below), whose sum is σ = 756078192. Its totient is φ = 168017368.

The previous prime is 420043427. The next prime is 420043433. The reversal of 420043430 is 34340024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (420043427) and next prime (420043433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420043433) 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 3 ways as a sum of consecutive naturals, for example, 21002162 + ... + 21002181.

It is an arithmetic number, because the mean of its divisors is an integer number (94509774).

Almost surely, 2^420043430 is an apocalyptic number.

420043430 is a deficient number, since it is larger than the sum of its proper divisors (336034762).

420043430 is a wasteful number, since it uses less digits than its factorization.

420043430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42004350.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 420043430 is about 20494.9610880333. The cubic root of 420043430 is about 748.9130506677.

Adding to 420043430 its reverse (34340024), we get a palindrome (454383454).

The spelling of 420043430 in words is "four hundred twenty million, forty-three thousand, four hundred thirty".