242457111 has 64 divisors (see below), whose sum is σ = 413683200. Its totient is φ = 139027968.

The previous prime is 242457109. The next prime is 242457181. The reversal of 242457111 is 111754242.

It is not a de Polignac number, because 242457111 - 2¹ = 242457109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242457101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1067980 + ... + 1068206.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^242457111 is an apocalyptic number.

242457111 is a deficient number, since it is larger than the sum of its proper divisors (171226089).

242457111 is a wasteful number, since it uses less digits than its factorization.

242457111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 439 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 242457111 is about 15571.0343587059. The cubic root of 242457111 is about 623.5600865732.

The spelling of 242457111 in words is "two hundred forty-two million, four hundred fifty-seven thousand, one hundred eleven".