40830938 has 4 divisors (see below), whose sum is σ = 61246410. Its totient is φ = 20415468.

The previous prime is 40830919. The next prime is 40830947. The reversal of 40830938 is 83903804.

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., 28976689 + 11854249 = 5383^2 + 3443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40830898 and 40830907.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207733 + ... + 10207736.

Almost surely, 2^40830938 is an apocalyptic number.

40830938 is a deficient number, since it is larger than the sum of its proper divisors (20415472).

40830938 is a wasteful number, since it uses less digits than its factorization.

40830938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20415471.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 40830938 is about 6389.9090760354. The cubic root of 40830938 is about 344.3471178443.

The spelling of 40830938 in words is "forty million, eight hundred thirty thousand, nine hundred thirty-eight".