421034424 has 32 divisors (see below), whose sum is σ = 1054181520. Its totient is φ = 140132096.

The previous prime is 421034423. The next prime is 421034429. The reversal of 421034424 is 424430124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 421034394 and 421034403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421034423) 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, 3292 + ... + 29204.

Almost surely, 2^421034424 is an apocalyptic number.

It is an amenable number.

421034424 is an abundant number, since it is smaller than the sum of its proper divisors (633147096).

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

421034424 is a wasteful number, since it uses less digits than its factorization.

421034424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26599 (or 26595 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 421034424 is about 20519.1233730878. The cubic root of 421034424 is about 749.5015496920.

Adding to 421034424 its reverse (424430124), we get a palindrome (845464548).

The spelling of 421034424 in words is "four hundred twenty-one million, thirty-four thousand, four hundred twenty-four".