242891383 has 12 divisors (see below), whose sum is σ = 297419160. Its totient is φ = 197234352.

The previous prime is 242891381. The next prime is 242891399. The reversal of 242891383 is 383198242.

It is not a de Polignac number, because 242891383 - 2¹ = 242891381 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 129516 + ... + 131377.

It is an arithmetic number, because the mean of its divisors is an integer number (24784930).

Almost surely, 2^242891383 is an apocalyptic number.

242891383 is a deficient number, since it is larger than the sum of its proper divisors (54527777).

242891383 is a wasteful number, since it uses less digits than its factorization.

242891383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260926 (or 260919 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 242891383 is about 15584.9729868229. The cubic root of 242891383 is about 623.9321567363.

The spelling of 242891383 in words is "two hundred forty-two million, eight hundred ninety-one thousand, three hundred eighty-three".