242491455 has 32 divisors (see below), whose sum is σ = 445009920. Its totient is φ = 125154720.

The previous prime is 242491453. The next prime is 242491463. The reversal of 242491455 is 554194242.

It is a happy number.

242491455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242491455 - 2¹ = 242491453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242491453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24787 + ... + 33156.

It is an arithmetic number, because the mean of its divisors is an integer number (13906560).

Almost surely, 2^242491455 is an apocalyptic number.

242491455 is a deficient number, since it is larger than the sum of its proper divisors (202518465).

242491455 is a wasteful number, since it uses less digits than its factorization.

242491455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57988 (or 57982 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 242491455 is about 15572.1371365654. The cubic root of 242491455 is about 623.5895275692.

The spelling of 242491455 in words is "two hundred forty-two million, four hundred ninety-one thousand, four hundred fifty-five".