242091378 has 12 divisors (see below), whose sum is σ = 524531358. Its totient is φ = 80697120.

The previous prime is 242091299. The next prime is 242091403. The reversal of 242091378 is 873190242.

242091378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 221325129 + 20766249 = 14877^2 + 4557^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6724743 + ... + 6724778.

Almost surely, 2^242091378 is an apocalyptic number.

242091378 is an abundant number, since it is smaller than the sum of its proper divisors (282439980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242091378 is a wasteful number, since it uses less digits than its factorization.

242091378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449529 (or 13449526 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 242091378 is about 15559.2859090641. The cubic root of 242091378 is about 623.2463936117.

The spelling of 242091378 in words is "two hundred forty-two million, ninety-one thousand, three hundred seventy-eight".