40999911 has 8 divisors (see below), whose sum is σ = 54752880. Its totient is φ = 27290112.

The previous prime is 40999843. The next prime is 40999921. The reversal of 40999911 is 11999904.

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

It is not a de Polignac number, because 40999911 - 2¹³ = 40991719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40999921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8506 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (6844110).

Almost surely, 2^40999911 is an apocalyptic number.

40999911 is a deficient number, since it is larger than the sum of its proper divisors (13752969).

40999911 is a wasteful number, since it uses less digits than its factorization.

40999911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21585.

The product of its (nonzero) digits is 26244, while the sum is 42.

The square root of 40999911 is about 6403.1172876967. The cubic root of 40999911 is about 344.8214745329.

The spelling of 40999911 in words is "forty million, nine hundred ninety-nine thousand, nine hundred eleven".