662756242 has 4 divisors (see below), whose sum is σ = 994134366. Its totient is φ = 331378120.

The previous prime is 662756221. The next prime is 662756249. The reversal of 662756242 is 242657266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242657266 = 2 ⋅121328633.

It can be written as a sum of positive squares in only one way, i.e., 655308801 + 7447441 = 25599^2 + 2729^2 .

It is a super-3 number, since 3×662756242³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662756195 and 662756204.

It is not an unprimeable number, because it can be changed into a prime (662756249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165689059 + ... + 165689062.

Almost surely, 2^662756242 is an apocalyptic number.

662756242 is a deficient number, since it is larger than the sum of its proper divisors (331378124).

662756242 is a wasteful number, since it uses less digits than its factorization.

662756242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331378123.

The product of its digits is 241920, while the sum is 40.

The square root of 662756242 is about 25744.0525558817. The cubic root of 662756242 is about 871.8690789404.

The spelling of 662756242 in words is "six hundred sixty-two million, seven hundred fifty-six thousand, two hundred forty-two".