940813911 has 24 divisors (see below), whose sum is σ = 1443823680. Its totient is φ = 589208256.

The previous prime is 940813901. The next prime is 940813943. The reversal of 940813911 is 119318049.

It is not a de Polignac number, because 940813911 - 2⁵ = 940813879 is a prime.

It is a super-2 number, since 2×940813911² = 1770261630262231842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940813901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39055 + ... + 58368.

It is an arithmetic number, because the mean of its divisors is an integer number (60159320).

Almost surely, 2^940813911 is an apocalyptic number.

940813911 is a deficient number, since it is larger than the sum of its proper divisors (503009769).

940813911 is a wasteful number, since it uses less digits than its factorization.

940813911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97495 (or 97492 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 940813911 is about 30672.6899863706. The cubic root of 940813911 is about 979.8687561991.

The spelling of 940813911 in words is "nine hundred forty million, eight hundred thirteen thousand, nine hundred eleven".