32421424 has 20 divisors (see below), whose sum is σ = 71790544. Its totient is φ = 13894848.

The previous prime is 32421409. The next prime is 32421427. The reversal of 32421424 is 42412423.

It is a happy number.

It is a super-2 number, since 2×32421424² = 2102297468375552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32421395 and 32421404.

It is not an unprimeable number, because it can be changed into a prime (32421427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144627 + ... + 144850.

Almost surely, 2^32421424 is an apocalyptic number.

It is an amenable number.

32421424 is an abundant number, since it is smaller than the sum of its proper divisors (39369120).

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

32421424 is a wasteful number, since it uses less digits than its factorization.

32421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289492 (or 289486 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 32421424 is about 5693.9813838825. The cubic root of 32421424 is about 318.8678219309.

Adding to 32421424 its reverse (42412423), we get a palindrome (74833847).

Subtracting 32421424 from its reverse (42412423), we obtain a palindrome (9990999).

The spelling of 32421424 in words is "thirty-two million, four hundred twenty-one thousand, four hundred twenty-four".