32649040 has 40 divisors (see below), whose sum is σ = 77682528. Its totient is φ = 12754560.

The previous prime is 32649037. The next prime is 32649047. The reversal of 32649040 is 4094623.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32649047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306 + ... + 8185.

Almost surely, 2^32649040 is an apocalyptic number.

It is an amenable number.

32649040 is an abundant number, since it is smaller than the sum of its proper divisors (45033488).

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

32649040 is a wasteful number, since it uses less digits than its factorization.

32649040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547 (or 9541 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 32649040 is about 5713.9338463094. The cubic root of 32649040 is about 319.6122908615.

The spelling of 32649040 in words is "thirty-two million, six hundred forty-nine thousand, forty".