40000448 has 14 divisors (see below), whose sum is σ = 79376016. Its totient is φ = 20000192.

The previous prime is 40000421. The next prime is 40000451. The reversal of 40000448 is 84400004.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 312440 + ... + 312567.

Almost surely, 2^40000448 is an apocalyptic number.

It is an amenable number.

40000448 is a deficient number, since it is larger than the sum of its proper divisors (39375568).

40000448 is an equidigital number, since it uses as much as digits as its factorization.

40000448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625019 (or 625009 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 40000448 is about 6324.5907377474. The cubic root of 40000448 is about 341.9964661126.

The spelling of 40000448 in words is "forty million, four hundred forty-eight", and thus it is an aban number.