40364823 has 4 divisors (see below), whose sum is σ = 53819768. Its totient is φ = 26909880.

The previous prime is 40364801. The next prime is 40364833. The reversal of 40364823 is 32846304.

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

It is a de Polignac number, because none of the positive numbers 2^k-40364823 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 (40364833) 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, 6727468 + ... + 6727473.

It is an arithmetic number, because the mean of its divisors is an integer number (13454942).

Almost surely, 2^40364823 is an apocalyptic number.

40364823 is a deficient number, since it is larger than the sum of its proper divisors (13454945).

40364823 is a wasteful number, since it uses less digits than its factorization.

40364823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454944.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 40364823 is about 6353.3316456801. The cubic root of 40364823 is about 343.0317751986.

The spelling of 40364823 in words is "forty million, three hundred sixty-four thousand, eight hundred twenty-three".