242888738 has 4 divisors (see below), whose sum is σ = 364333110. Its totient is φ = 121444368.

The previous prime is 242888719. The next prime is 242888759. The reversal of 242888738 is 837888242.

It is a happy number.

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., 122832889 + 120055849 = 11083^2 + 10957^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722183 + ... + 60722186.

Almost surely, 2^242888738 is an apocalyptic number.

242888738 is a deficient number, since it is larger than the sum of its proper divisors (121444372).

242888738 is a wasteful number, since it uses less digits than its factorization.

242888738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121444371.

The product of its digits is 1376256, while the sum is 50.

The square root of 242888738 is about 15584.8881292103. Note that the first 3 decimals coincide. The cubic root of 242888738 is about 623.9298919290.

The spelling of 242888738 in words is "two hundred forty-two million, eight hundred eighty-eight thousand, seven hundred thirty-eight".