40434911 has 4 divisors (see below), whose sum is σ = 44110824. Its totient is φ = 36759000.

The previous prime is 40434893. The next prime is 40434913. The reversal of 40434911 is 11943404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40434911 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 (40434913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837940 + ... + 1837961.

It is an arithmetic number, because the mean of its divisors is an integer number (11027706).

Almost surely, 2^40434911 is an apocalyptic number.

40434911 is a deficient number, since it is larger than the sum of its proper divisors (3675913).

40434911 is a wasteful number, since it uses less digits than its factorization.

40434911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675912.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40434911 is about 6358.8450995444. The cubic root of 40434911 is about 343.2302029981.

The spelling of 40434911 in words is "forty million, four hundred thirty-four thousand, nine hundred eleven".