240404134 has 4 divisors (see below), whose sum is σ = 360606204. Its totient is φ = 120202066.

The previous prime is 240404077. The next prime is 240404149. The reversal of 240404134 is 431404042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431404042 = 2 ⋅215702021.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101032 + ... + 60101035.

It is an arithmetic number, because the mean of its divisors is an integer number (90151551).

Almost surely, 2^240404134 is an apocalyptic number.

240404134 is a deficient number, since it is larger than the sum of its proper divisors (120202070).

240404134 is a wasteful number, since it uses less digits than its factorization.

240404134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120202069.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 240404134 is about 15504.9712673065. The cubic root of 240404134 is about 621.7951217790.

Adding to 240404134 its reverse (431404042), we get a palindrome (671808176).

The spelling of 240404134 in words is "two hundred forty million, four hundred four thousand, one hundred thirty-four".