32145040 has 20 divisors (see below), whose sum is σ = 74737404. Its totient is φ = 12857984.

The previous prime is 32145013. The next prime is 32145041. The reversal of 32145040 is 4054123.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 27751824 = 2096^2 + 5268^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 32144999 and 32145017.

It is not an unprimeable number, because it can be changed into a prime (32145041) 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, 200827 + ... + 200986.

Almost surely, 2^32145040 is an apocalyptic number.

It is an amenable number.

32145040 is an abundant number, since it is smaller than the sum of its proper divisors (42592364).

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

32145040 is a wasteful number, since it uses less digits than its factorization.

32145040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401826 (or 401820 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 32145040 is about 5669.6596017750. The cubic root of 32145040 is about 317.9591472116.

Adding to 32145040 its reverse (4054123), we get a palindrome (36199163).

The spelling of 32145040 in words is "thirty-two million, one hundred forty-five thousand, forty".