40991122 has 8 divisors (see below), whose sum is σ = 61514172. Its totient is φ = 20486400.

The previous prime is 40991107. The next prime is 40991141. The reversal of 40991122 is 22119904.

It is a happy number.

40991122 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 40182921 + 808201 = 6339^2 + 899^2 .

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

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, 5122 + ... + 10402.

Almost surely, 2^40991122 is an apocalyptic number.

40991122 is a deficient number, since it is larger than the sum of its proper divisors (20523050).

40991122 is a wasteful number, since it uses less digits than its factorization.

40991122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9164.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 40991122 is about 6402.4309445710. The cubic root of 40991122 is about 344.7968334020.

The spelling of 40991122 in words is "forty million, nine hundred ninety-one thousand, one hundred twenty-two".