40904245 has 8 divisors (see below), whose sum is σ = 51668640. Its totient is φ = 31001040.

The previous prime is 40904243. The next prime is 40904257. The reversal of 40904245 is 54240904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40904245 - 2¹ = 40904243 is a prime.

It is a super-3 number, since 3×40904245³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40904243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215191 + ... + 215380.

It is an arithmetic number, because the mean of its divisors is an integer number (6458580).

Almost surely, 2^40904245 is an apocalyptic number.

It is an amenable number.

40904245 is a deficient number, since it is larger than the sum of its proper divisors (10764395).

40904245 is a wasteful number, since it uses less digits than its factorization.

40904245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430595.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40904245 is about 6395.6426573097. The cubic root of 40904245 is about 344.5530724750.

The spelling of 40904245 in words is "forty million, nine hundred four thousand, two hundred forty-five".