242742628 has 12 divisors (see below), whose sum is σ = 427901292. Its totient is φ = 120485120.

The previous prime is 242742623. The next prime is 242742637. The reversal of 242742628 is 826247242.

It can be written as a sum of positive squares in 2 ways, for example, as 47637604 + 195105024 = 6902^2 + 13968^2 .

It is not an unprimeable number, because it can be changed into a prime (242742623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220933 + ... + 222028.

It is an arithmetic number, because the mean of its divisors is an integer number (35658441).

Almost surely, 2^242742628 is an apocalyptic number.

It is an amenable number.

242742628 is a deficient number, since it is larger than the sum of its proper divisors (185158664).

242742628 is a wasteful number, since it uses less digits than its factorization.

242742628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443102 (or 443100 counting only the distinct ones).

The product of its digits is 86016, while the sum is 37.

The square root of 242742628 is about 15580.1998703483. The cubic root of 242742628 is about 623.8047582526.

The spelling of 242742628 in words is "two hundred forty-two million, seven hundred forty-two thousand, six hundred twenty-eight".