40338911 has 4 divisors (see below), whose sum is σ = 40443000. Its totient is φ = 40234824.

The previous prime is 40338899. The next prime is 40338923. The reversal of 40338911 is 11983304.

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

It is an interprime number because it is at equal distance from previous prime (40338899) and next prime (40338923).

It is a cyclic number.

It is not a de Polignac number, because 40338911 - 2²² = 36144607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40338511) 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, 51461 + ... + 52238.

It is an arithmetic number, because the mean of its divisors is an integer number (10110750).

Almost surely, 2^40338911 is an apocalyptic number.

40338911 is a deficient number, since it is larger than the sum of its proper divisors (104089).

40338911 is a wasteful number, since it uses less digits than its factorization.

40338911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104088.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 40338911 is about 6351.2920732714. The cubic root of 40338911 is about 342.9583569648.

The spelling of 40338911 in words is "forty million, three hundred thirty-eight thousand, nine hundred eleven".