420234424 has 16 divisors (see below), whose sum is σ = 834289200. Its totient is φ = 197757312.

The previous prime is 420234421. The next prime is 420234427. The reversal of 420234424 is 424432024.

It is an interprime number because it is at equal distance from previous prime (420234421) and next prime (420234427).

It is a super-2 number, since 2×420234424² = 353193942229223552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420234421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544844 + ... + 1545115.

It is an arithmetic number, because the mean of its divisors is an integer number (52143075).

Almost surely, 2^420234424 is an apocalyptic number.

It is an amenable number.

420234424 is a deficient number, since it is larger than the sum of its proper divisors (414054776).

420234424 is a wasteful number, since it uses less digits than its factorization.

420234424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089982 (or 3089978 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 420234424 is about 20499.6200940408. The cubic root of 420234424 is about 749.0265438723.

Adding to 420234424 its reverse (424432024), we get a palindrome (844666448).

The spelling of 420234424 in words is "four hundred twenty million, two hundred thirty-four thousand, four hundred twenty-four".