40184090 has 16 divisors (see below), whose sum is σ = 76586472. Its totient is φ = 15128064.

The previous prime is 40184063. The next prime is 40184129. The reversal of 40184090 is 9048104.

It can be written as a sum of positive squares in 4 ways, for example, as 39526369 + 657721 = 6287^2 + 811^2 .

It is a super-2 number, since 2×40184090² = 3229522178256200, which contains 22 as substring.

It is an unprimeable number.

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, 118019 + ... + 118358.

Almost surely, 2^40184090 is an apocalyptic number.

40184090 is a deficient number, since it is larger than the sum of its proper divisors (36402382).

40184090 is a wasteful number, since it uses less digits than its factorization.

40184090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236401.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 40184090 is about 6339.0922063021. The cubic root of 40184090 is about 342.5190356515.

The spelling of 40184090 in words is "forty million, one hundred eighty-four thousand, ninety".