40904027 has 4 divisors (see below), whose sum is σ = 41325816. Its totient is φ = 40482240.

The previous prime is 40904021. The next prime is 40904029. The reversal of 40904027 is 72040904.

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 40904027 - 2⁴ = 40904011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40903987 and 40904005.

It is not an unprimeable number, because it can be changed into a prime (40904021) 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, 210749 + ... + 210942.

It is an arithmetic number, because the mean of its divisors is an integer number (10331454).

Almost surely, 2^40904027 is an apocalyptic number.

40904027 is a deficient number, since it is larger than the sum of its proper divisors (421789).

40904027 is an equidigital number, since it uses as much as digits as its factorization.

40904027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421788.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40904027 is about 6395.6256144337. The cubic root of 40904027 is about 344.5524603731.

The spelling of 40904027 in words is "forty million, nine hundred four thousand, twenty-seven".