40282730 has 8 divisors (see below), whose sum is σ = 72508932. Its totient is φ = 16113088.

The previous prime is 40282727. The next prime is 40282763. The reversal of 40282730 is 3728204.

40282730 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 33744481 + 6538249 = 5809^2 + 2557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40282730.

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, 2014127 + ... + 2014146.

Almost surely, 2^40282730 is an apocalyptic number.

40282730 is a deficient number, since it is larger than the sum of its proper divisors (32226202).

40282730 is a wasteful number, since it uses less digits than its factorization.

40282730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028280.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40282730 is about 6346.8677314089. The cubic root of 40282730 is about 342.7990674616.

The spelling of 40282730 in words is "forty million, two hundred eighty-two thousand, seven hundred thirty".