424032420 has 48 divisors (see below), whose sum is σ = 1356905088. Its totient is φ = 96921600.

The previous prime is 424032409. The next prime is 424032451. The reversal of 424032420 is 24230424.

It is a super-2 number, since 2×424032420² = 359606986422112800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504381 + ... + 505220.

It is an arithmetic number, because the mean of its divisors is an integer number (28268856).

Almost surely, 2^424032420 is an apocalyptic number.

It is an amenable number.

424032420 is an abundant number, since it is smaller than the sum of its proper divisors (932872668).

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

424032420 is a wasteful number, since it uses less digits than its factorization.

424032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009620 (or 1009618 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 424032420 is about 20592.0474941177. The cubic root of 424032420 is about 751.2762979638.

Adding to 424032420 its reverse (24230424), we get a palindrome (448262844).

The spelling of 424032420 in words is "four hundred twenty-four million, thirty-two thousand, four hundred twenty".