40500290 has 16 divisors (see below), whose sum is σ = 77189112. Its totient is φ = 15247104.

The previous prime is 40500289. The next prime is 40500301. The reversal of 40500290 is 9200504.

40500290 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 4 ways, for example, as 37613689 + 2886601 = 6133^2 + 1699^2 .

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 7 ways as a sum of consecutive naturals, for example, 118949 + ... + 119288.

Almost surely, 2^40500290 is an apocalyptic number.

40500290 is a deficient number, since it is larger than the sum of its proper divisors (36688822).

40500290 is a wasteful number, since it uses less digits than its factorization.

40500290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238261.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 40500290 is about 6363.9838151900. The cubic root of 40500290 is about 343.4150924360.

Adding to 40500290 its reverse (9200504), we get a palindrome (49700794).

The spelling of 40500290 in words is "forty million, five hundred thousand, two hundred ninety".