40559938 has 4 divisors (see below), whose sum is σ = 60839910. Its totient is φ = 20279968.

The previous prime is 40559929. The next prime is 40559989. The reversal of 40559938 is 83995504.

It is a happy number.

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., 34374769 + 6185169 = 5863^2 + 2487^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40559894 and 40559903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10139983 + ... + 10139986.

Almost surely, 2^40559938 is an apocalyptic number.

40559938 is a deficient number, since it is larger than the sum of its proper divisors (20279972).

40559938 is a wasteful number, since it uses less digits than its factorization.

40559938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20279971.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 40559938 is about 6368.6684636586. The cubic root of 40559938 is about 343.5836013158.

The spelling of 40559938 in words is "forty million, five hundred fifty-nine thousand, nine hundred thirty-eight".