242891384 has 32 divisors (see below), whose sum is σ = 470067600. Its totient is φ = 117573120.

The previous prime is 242891381. The next prime is 242891399. The reversal of 242891384 is 483198242.

It is a super-3 number, since 3×242891384³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242891381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60512 + ... + 64400.

Almost surely, 2^242891384 is an apocalyptic number.

It is an amenable number.

242891384 is a deficient number, since it is larger than the sum of its proper divisors (227176216).

242891384 is a wasteful number, since it uses less digits than its factorization.

242891384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143 (or 4139 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 242891384 is about 15584.9730189051. The cubic root of 242891384 is about 623.9321575925.

The spelling of 242891384 in words is "two hundred forty-two million, eight hundred ninety-one thousand, three hundred eighty-four".