32730040 has 48 divisors (see below), whose sum is σ = 85671000. Its totient is φ = 11221056.

The previous prime is 32730023. The next prime is 32730041. The reversal of 32730040 is 4003723.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32730041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6390 + ... + 10309.

Almost surely, 2^32730040 is an apocalyptic number.

It is an amenable number.

32730040 is an abundant number, since it is smaller than the sum of its proper divisors (52940960).

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

32730040 is a wasteful number, since it uses less digits than its factorization.

32730040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16724 (or 16713 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 32730040 is about 5721.0173920379. The cubic root of 32730040 is about 319.8763845454.

Adding to 32730040 its reverse (4003723), we get a palindrome (36733763).

The spelling of 32730040 in words is "thirty-two million, seven hundred thirty thousand, forty".