32424420 has 48 divisors (see below), whose sum is σ = 103759488. Its totient is φ = 7411200.

The previous prime is 32424409. The next prime is 32424421. The reversal of 32424420 is 2442423.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32424421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38181 + ... + 39020.

It is an arithmetic number, because the mean of its divisors is an integer number (2161656).

Almost surely, 2^32424420 is an apocalyptic number.

32424420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32424420 is an abundant number, since it is smaller than the sum of its proper divisors (71335068).

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

32424420 is a wasteful number, since it uses less digits than its factorization.

32424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77220 (or 77218 counting only the distinct ones).

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

The square root of 32424420 is about 5694.2444626131. The cubic root of 32424420 is about 318.8776436110.

Adding to 32424420 its reverse (2442423), we get a palindrome (34866843).

The spelling of 32424420 in words is "thirty-two million, four hundred twenty-four thousand, four hundred twenty".