40255345 has 8 divisors (see below), whose sum is σ = 52022376. Its totient is φ = 29726976.

The previous prime is 40255343. The next prime is 40255349. The reversal of 40255345 is 54355204.

It can be written as a sum of positive squares in 4 ways, for example, as 300304 + 39955041 = 548^2 + 6321^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40255345 - 2¹ = 40255343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40255343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309592 + ... + 309721.

It is an arithmetic number, because the mean of its divisors is an integer number (6502797).

Almost surely, 2^40255345 is an apocalyptic number.

It is an amenable number.

40255345 is a deficient number, since it is larger than the sum of its proper divisors (11767031).

40255345 is a wasteful number, since it uses less digits than its factorization.

40255345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619331.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 40255345 is about 6344.7100012530. The cubic root of 40255345 is about 342.7213693137.

The spelling of 40255345 in words is "forty million, two hundred fifty-five thousand, three hundred forty-five".