240438386 has 4 divisors (see below), whose sum is σ = 360657582. Its totient is φ = 120219192.

The previous prime is 240438383. The next prime is 240438403. The reversal of 240438386 is 683834042.

240438386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 179051161 + 61387225 = 13381^2 + 7835^2 .

It is not an unprimeable number, because it can be changed into a prime (240438383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60109595 + ... + 60109598.

Almost surely, 2^240438386 is an apocalyptic number.

240438386 is a deficient number, since it is larger than the sum of its proper divisors (120219196).

240438386 is a wasteful number, since it uses less digits than its factorization.

240438386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120219195.

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 240438386 is about 15506.0757769334. The cubic root of 240438386 is about 621.8246508263.

The spelling of 240438386 in words is "two hundred forty million, four hundred thirty-eight thousand, three hundred eighty-six".