40901090 has 16 divisors (see below), whose sum is σ = 75997440. Its totient is φ = 15832560.

The previous prime is 40901089. The next prime is 40901111. The reversal of 40901090 is 9010904.

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, 65660 + ... + 66279.

It is an arithmetic number, because the mean of its divisors is an integer number (4749840).

Almost surely, 2^40901090 is an apocalyptic number.

40901090 is a deficient number, since it is larger than the sum of its proper divisors (35096350).

40901090 is a wasteful number, since it uses less digits than its factorization.

40901090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131977.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 40901090 is about 6395.3960002489. The cubic root of 40901090 is about 344.5442136317.

Adding to 40901090 its reverse (9010904), we get a palindrome (49911994).

The spelling of 40901090 in words is "forty million, nine hundred one thousand, ninety".