240874138 has 4 divisors (see below), whose sum is σ = 361311210. Its totient is φ = 120437068.

The previous prime is 240874121. The next prime is 240874157. The reversal of 240874138 is 831478042.

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., 146337409 + 94536729 = 12097^2 + 9723^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240874097 and 240874106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60218533 + ... + 60218536.

Almost surely, 2^240874138 is an apocalyptic number.

240874138 is a deficient number, since it is larger than the sum of its proper divisors (120437072).

240874138 is a wasteful number, since it uses less digits than its factorization.

240874138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120437071.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 240874138 is about 15520.1204247905. The cubic root of 240874138 is about 622.2000731463.

The spelling of 240874138 in words is "two hundred forty million, eight hundred seventy-four thousand, one hundred thirty-eight".