40940911 has 4 divisors (see below), whose sum is σ = 44662824. Its totient is φ = 37219000.

The previous prime is 40940903. The next prime is 40940929. The reversal of 40940911 is 11904904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40940911 - 2³ = 40940903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40940911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40940941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860940 + ... + 1860961.

It is an arithmetic number, because the mean of its divisors is an integer number (11165706).

Almost surely, 2^40940911 is an apocalyptic number.

40940911 is the 2862-nd centered decagonal number.

40940911 is a deficient number, since it is larger than the sum of its proper divisors (3721913).

40940911 is a wasteful number, since it uses less digits than its factorization.

40940911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721912.

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

The square root of 40940911 is about 6398.5084980798. The cubic root of 40940911 is about 344.6559926001.

The spelling of 40940911 in words is "forty million, nine hundred forty thousand, nine hundred eleven".