242219738 has 4 divisors (see below), whose sum is σ = 363329610. Its totient is φ = 121109868.

The previous prime is 242219729. The next prime is 242219741. The reversal of 242219738 is 837912242.

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., 242206969 + 12769 = 15563^2 + 113^2 .

It is a super-3 number, since 3×242219738³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60554933 + ... + 60554936.

Almost surely, 2^242219738 is an apocalyptic number.

242219738 is a deficient number, since it is larger than the sum of its proper divisors (121109872).

242219738 is a wasteful number, since it uses less digits than its factorization.

242219738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121109871.

The product of its digits is 48384, while the sum is 38.

The square root of 242219738 is about 15563.4102304090. The cubic root of 242219738 is about 623.3565252666.

The spelling of 242219738 in words is "two hundred forty-two million, two hundred nineteen thousand, seven hundred thirty-eight".