240078538 has 36 divisors (see below), whose sum is σ = 428401170. Its totient is φ = 100610832.

The previous prime is 240078529. The next prime is 240078593. The reversal of 240078538 is 835870042.

It can be written as a sum of positive squares in only one way, i.e., 239104369 + 974169 = 15463^2 + 987^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240078497 and 240078506.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 215928 + ... + 217036.

Almost surely, 2^240078538 is an apocalyptic number.

240078538 is a deficient number, since it is larger than the sum of its proper divisors (188322632).

240078538 is a wasteful number, since it uses less digits than its factorization.

240078538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 240078538 is about 15494.4679805407. The cubic root of 240078538 is about 621.5142815274.

The spelling of 240078538 in words is "two hundred forty million, seventy-eight thousand, five hundred thirty-eight".