40854679 has 4 divisors (see below), whose sum is σ = 41625576. Its totient is φ = 40083784.

The previous prime is 40854673. The next prime is 40854691. The reversal of 40854679 is 97645804.

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

It is a cyclic number.

It is not a de Polignac number, because 40854679 - 2¹⁹ = 40330391 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 (40854673) 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, 385369 + ... + 385474.

It is an arithmetic number, because the mean of its divisors is an integer number (10406394).

Almost surely, 2^40854679 is an apocalyptic number.

40854679 is a deficient number, since it is larger than the sum of its proper divisors (770897).

40854679 is an equidigital number, since it uses as much as digits as its factorization.

40854679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770896.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 40854679 is about 6391.7665007414. The cubic root of 40854679 is about 344.4138447053.

The spelling of 40854679 in words is "forty million, eight hundred fifty-four thousand, six hundred seventy-nine".