40920265 has 4 divisors (see below), whose sum is σ = 49104324. Its totient is φ = 32736208.

The previous prime is 40920259. The next prime is 40920283. The reversal of 40920265 is 56202904.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14077504 + 26842761 = 3752^2 + 5181^2 .

It is a cyclic number.

It is not a de Polignac number, because 40920265 - 2¹⁷ = 40789193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4092022 + ... + 4092031.

It is an arithmetic number, because the mean of its divisors is an integer number (12276081).

Almost surely, 2^40920265 is an apocalyptic number.

It is an amenable number.

40920265 is a deficient number, since it is larger than the sum of its proper divisors (8184059).

40920265 is an equidigital number, since it uses as much as digits as its factorization.

40920265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184058.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40920265 is about 6396.8949498956. The cubic root of 40920265 is about 344.5980475934.

The spelling of 40920265 in words is "forty million, nine hundred twenty thousand, two hundred sixty-five".