32004140 has 24 divisors (see below), whose sum is σ = 76810272. Its totient is φ = 10972800.

The previous prime is 32004131. The next prime is 32004143. The reversal of 32004140 is 4140023.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (32004143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114161 + ... + 114440.

It is an arithmetic number, because the mean of its divisors is an integer number (3200428).

Almost surely, 2^32004140 is an apocalyptic number.

It is an amenable number.

32004140 is an abundant number, since it is smaller than the sum of its proper divisors (44806132).

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

32004140 is a wasteful number, since it uses less digits than its factorization.

32004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228617 (or 228615 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 32004140 is about 5657.2201654169. The cubic root of 32004140 is about 317.4939011373.

Adding to 32004140 its reverse (4140023), we get a palindrome (36144163).

The spelling of 32004140 in words is "thirty-two million, four thousand, one hundred forty".