40039648 has 24 divisors (see below), whose sum is σ = 85995000. Its totient is φ = 18199680.

The previous prime is 40039627. The next prime is 40039651. The reversal of 40039648 is 84693004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56523 + ... + 57226.

It is an arithmetic number, because the mean of its divisors is an integer number (3583125).

Almost surely, 2^40039648 is an apocalyptic number.

It is an amenable number.

40039648 is an abundant number, since it is smaller than the sum of its proper divisors (45955352).

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

40039648 is a wasteful number, since it uses less digits than its factorization.

40039648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113770 (or 113762 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40039648 is about 6327.6889936216. The cubic root of 40039648 is about 342.1081472328.

The spelling of 40039648 in words is "forty million, thirty-nine thousand, six hundred forty-eight".