32145804 has 72 divisors (see below), whose sum is σ = 86224320. Its totient is φ = 10080000.

The previous prime is 32145803. The next prime is 32145809. The reversal of 32145804 is 40854123.

It is not an unprimeable number, because it can be changed into a prime (32145803) 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 23 ways as a sum of consecutive naturals, for example, 42429 + ... + 43179.

It is an arithmetic number, because the mean of its divisors is an integer number (1197560).

Almost surely, 2^32145804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32145804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43112160).

32145804 is an abundant number, since it is smaller than the sum of its proper divisors (54078516).

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

32145804 is a wasteful number, since it uses less digits than its factorization.

32145804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 32145804 is about 5669.7269775537. The cubic root of 32145804 is about 317.9616661992.

Adding to 32145804 its reverse (40854123), we get a palindrome (72999927).

The spelling of 32145804 in words is "thirty-two million, one hundred forty-five thousand, eight hundred four".