40938385 has 4 divisors (see below), whose sum is σ = 49126068. Its totient is φ = 32750704.

The previous prime is 40938379. The next prime is 40938409. The reversal of 40938385 is 58383904.

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 21233664 + 19704721 = 4608^2 + 4439^2 .

It is a cyclic number.

It is not a de Polignac number, because 40938385 - 2⁷ = 40938257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4093834 + ... + 4093843.

It is an arithmetic number, because the mean of its divisors is an integer number (12281517).

Almost surely, 2^40938385 is an apocalyptic number.

It is an amenable number.

40938385 is a deficient number, since it is larger than the sum of its proper divisors (8187683).

40938385 is an equidigital number, since it uses as much as digits as its factorization.

40938385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187682.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 40938385 is about 6398.3111052840. The cubic root of 40938385 is about 344.6489041815.

The spelling of 40938385 in words is "forty million, nine hundred thirty-eight thousand, three hundred eighty-five".