40823929 has 4 divisors (see below), whose sum is σ = 41515920. Its totient is φ = 40131940.

The previous prime is 40823921. The next prime is 40823963. The reversal of 40823929 is 92932804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40823929 - 2³ = 40823921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40823921) 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, 345907 + ... + 346024.

It is an arithmetic number, because the mean of its divisors is an integer number (10378980).

Almost surely, 2^40823929 is an apocalyptic number.

It is an amenable number.

40823929 is a deficient number, since it is larger than the sum of its proper divisors (691991).

40823929 is an equidigital number, since it uses as much as digits as its factorization.

40823929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691990.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 40823929 is about 6389.3606096385. The cubic root of 40823929 is about 344.3274132838.

The spelling of 40823929 in words is "forty million, eight hundred twenty-three thousand, nine hundred twenty-nine".