242540727 has 64 divisors (see below), whose sum is σ = 405651456. Its totient is φ = 126783360.

The previous prime is 242540723. The next prime is 242540729. The reversal of 242540727 is 727045242.

It is a happy number.

It is not a de Polignac number, because 242540727 - 2² = 242540723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242540723) 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, 463488 + ... + 464010.

It is an arithmetic number, because the mean of its divisors is an integer number (6338304).

Almost surely, 2^242540727 is an apocalyptic number.

242540727 is a deficient number, since it is larger than the sum of its proper divisors (163110729).

242540727 is a wasteful number, since it uses less digits than its factorization.

242540727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 242540727 is about 15573.7191126590. The cubic root of 242540727 is about 623.6317605658.

Adding to 242540727 its reverse (727045242), we get a palindrome (969585969).

The spelling of 242540727 in words is "two hundred forty-two million, five hundred forty thousand, seven hundred twenty-seven".