40340375 has 16 divisors (see below), whose sum is σ = 50651328. Its totient is φ = 32076000.

The previous prime is 40340369. The next prime is 40340387. The reversal of 40340375 is 57304304.

It is not a de Polignac number, because 40340375 - 2⁴ = 40340359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21734 + ... + 23516.

It is an arithmetic number, because the mean of its divisors is an integer number (3165708).

Almost surely, 2^40340375 is an apocalyptic number.

40340375 is a deficient number, since it is larger than the sum of its proper divisors (10310953).

40340375 is a wasteful number, since it uses less digits than its factorization.

40340375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 40340375 is about 6351.4073243652. The cubic root of 40340375 is about 342.9625058535.

Adding to 40340375 its reverse (57304304), we get a palindrome (97644679).

The spelling of 40340375 in words is "forty million, three hundred forty thousand, three hundred seventy-five".