40539460 has 24 divisors (see below), whose sum is σ = 91682136. Its totient is φ = 14968320.

The previous prime is 40539439. The next prime is 40539463. The reversal of 40539460 is 6493504.

It can be written as a sum of positive squares in 4 ways, for example, as 419904 + 40119556 = 648^2 + 6334^2 .

It is not an unprimeable number, because it can be changed into a prime (40539463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 77701 + ... + 78220.

It is an arithmetic number, because the mean of its divisors is an integer number (3820089).

Almost surely, 2^40539460 is an apocalyptic number.

It is an amenable number.

40539460 is an abundant number, since it is smaller than the sum of its proper divisors (51142676).

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

40539460 is a wasteful number, since it uses less digits than its factorization.

40539460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155943 (or 155941 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 40539460 is about 6367.0605462804. The cubic root of 40539460 is about 343.5257684741.

The spelling of 40539460 in words is "forty million, five hundred thirty-nine thousand, four hundred sixty".