40209448 has 16 divisors (see below), whose sum is σ = 75506580. Its totient is φ = 20074368.

The previous prime is 40209439. The next prime is 40209461. The reversal of 40209448 is 84490204.

It can be written as a sum of positive squares in 2 ways, for example, as 40170244 + 39204 = 6338^2 + 198^2 .

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, 2436 + ... + 9292.

Almost surely, 2^40209448 is an apocalyptic number.

It is an amenable number.

40209448 is a deficient number, since it is larger than the sum of its proper divisors (35297132).

40209448 is a wasteful number, since it uses less digits than its factorization.

40209448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40209448 is about 6341.0920195184. The cubic root of 40209448 is about 342.5910688977.

The spelling of 40209448 in words is "forty million, two hundred nine thousand, four hundred forty-eight".