40375394 has 4 divisors (see below), whose sum is σ = 60563094. Its totient is φ = 20187696.

The previous prime is 40375393. The next prime is 40375403. The reversal of 40375394 is 49357304.

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

It can be written as a sum of positive squares in only one way, i.e., 35557369 + 4818025 = 5963^2 + 2195^2 .

It is not an unprimeable number, because it can be changed into a prime (40375393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10093847 + ... + 10093850.

Almost surely, 2^40375394 is an apocalyptic number.

40375394 is a deficient number, since it is larger than the sum of its proper divisors (20187700).

40375394 is a wasteful number, since it uses less digits than its factorization.

40375394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187699.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 40375394 is about 6354.1635169391. The cubic root of 40375394 is about 343.0617177090.

The spelling of 40375394 in words is "forty million, three hundred seventy-five thousand, three hundred ninety-four".