40549928 has 16 divisors (see below), whose sum is σ = 78086580. Its totient is φ = 19726848.

The previous prime is 40549909. The next prime is 40549963. The reversal of 40549928 is 82994504.

40549928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31561924 + 8988004 = 5618^2 + 2998^2 .

It is a super-3 number, since 3×40549928³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 68201 + ... + 68792.

Almost surely, 2^40549928 is an apocalyptic number.

It is an amenable number.

40549928 is a deficient number, since it is larger than the sum of its proper divisors (37536652).

40549928 is a wasteful number, since it uses less digits than its factorization.

40549928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137036 (or 137032 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 40549928 is about 6367.8825366051. The cubic root of 40549928 is about 343.5553340568. Note that the first 3 decimals are identical.

The spelling of 40549928 in words is "forty million, five hundred forty-nine thousand, nine hundred twenty-eight".