40424648 has 24 divisors (see below), whose sum is σ = 83315190. Its totient is φ = 18374400.

The previous prime is 40424633. The next prime is 40424669. The reversal of 40424648 is 84642404.

It can be written as a sum of positive squares in only one way, i.e., 40424164 + 484 = 6358^2 + 22^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 19913 + ... + 21848.

Almost surely, 2^40424648 is an apocalyptic number.

It is an amenable number.

40424648 is an abundant number, since it is smaller than the sum of its proper divisors (42890542).

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

40424648 is a wasteful number, since it uses less digits than its factorization.

40424648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41789 (or 41774 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 40424648 is about 6358.0380621698. The cubic root of 40424648 is about 343.2011615126.

It can be divided in two parts, 404 and 24648, that added together give a palindrome (25052).

The spelling of 40424648 in words is "forty million, four hundred twenty-four thousand, six hundred forty-eight".