40854823 has 4 divisors (see below), whose sum is σ = 42263640. Its totient is φ = 39446008.

The previous prime is 40854817. The next prime is 40854829. The reversal of 40854823 is 32845804.

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 (40854817) and next prime (40854829).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40854823 is a prime.

It is a super-2 number, since 2×40854823² = 3338233124722658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40854829) 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, 704365 + ... + 704422.

It is an arithmetic number, because the mean of its divisors is an integer number (10565910).

Almost surely, 2^40854823 is an apocalyptic number.

40854823 is a deficient number, since it is larger than the sum of its proper divisors (1408817).

40854823 is a wasteful number, since it uses less digits than its factorization.

40854823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408816.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 40854823 is about 6391.7777652231. Note that the first 4 decimals coincide. The cubic root of 40854823 is about 344.4142493552.

The spelling of 40854823 in words is "forty million, eight hundred fifty-four thousand, eight hundred twenty-three".