40859429 has 4 divisors (see below), whose sum is σ = 44002476. Its totient is φ = 37716384.

The previous prime is 40859419. The next prime is 40859437. The reversal of 40859429 is 92495804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4739329 + 36120100 = 2177^2 + 6010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40859429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40859419) 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, 1571504 + ... + 1571529.

It is an arithmetic number, because the mean of its divisors is an integer number (11000619).

Almost surely, 2^40859429 is an apocalyptic number.

It is an amenable number.

40859429 is a deficient number, since it is larger than the sum of its proper divisors (3143047).

40859429 is a wasteful number, since it uses less digits than its factorization.

40859429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143046.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 40859429 is about 6392.1380617130. The cubic root of 40859429 is about 344.4271920329.

The spelling of 40859429 in words is "forty million, eight hundred fifty-nine thousand, four hundred twenty-nine".