40481730 has 24 divisors (see below), whose sum is σ = 105252732. Its totient is φ = 10795104.

The previous prime is 40481717. The next prime is 40481731. The reversal of 40481730 is 3718404.

40481730 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 38825361 + 1656369 = 6231^2 + 1287^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40481694 and 40481703.

It is not an unprimeable number, because it can be changed into a prime (40481731) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 224809 + ... + 224988.

Almost surely, 2^40481730 is an apocalyptic number.

40481730 is an abundant number, since it is smaller than the sum of its proper divisors (64771002).

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

40481730 is a wasteful number, since it uses less digits than its factorization.

40481730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449810 (or 449807 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 40481730 is about 6362.5254419924. The cubic root of 40481730 is about 343.3626256676.

It can be divided in two parts, 4048 and 1730, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 40481730 in words is "forty million, four hundred eighty-one thousand, seven hundred thirty".