32421642 has 32 divisors (see below), whose sum is σ = 71414784. Its totient is φ = 9730800.

The previous prime is 32421617. The next prime is 32421643. The reversal of 32421642 is 24612423.

It is not an unprimeable number, because it can be changed into a prime (32421643) 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, 4767 + ... + 9357.

It is an arithmetic number, because the mean of its divisors is an integer number (2231712).

Almost surely, 2^32421642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32421642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35707392).

32421642 is an abundant number, since it is smaller than the sum of its proper divisors (38993142).

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

32421642 is a wasteful number, since it uses less digits than its factorization.

32421642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714.

The product of its digits is 2304, while the sum is 24.

The square root of 32421642 is about 5694.0005268704. Note that the first 3 decimals coincide. The cubic root of 32421642 is about 318.8685366129.

It can be divided in two parts, 3242 and 1642, that added together give a palindrome (4884).

The spelling of 32421642 in words is "thirty-two million, four hundred twenty-one thousand, six hundred forty-two".