1253674242 has 12 divisors (see below), whose sum is σ = 2716294230. Its totient is φ = 417891408.

The previous prime is 1253674241. The next prime is 1253674249. The reversal of 1253674242 is 2424763521.

1253674242 is a `hidden beast` number, since 12 + 536 + 74 + 2 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 974750841 + 278923401 = 31221^2 + 16701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1253674197 and 1253674206.

It is not an unprimeable number, because it can be changed into a prime (1253674241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34824267 + ... + 34824302.

Almost surely, 2^1253674242 is an apocalyptic number.

1253674242 is an abundant number, since it is smaller than the sum of its proper divisors (1462619988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253674242 is a wasteful number, since it uses less digits than its factorization.

1253674242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69648577 (or 69648574 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 1253674242 is about 35407.2625601020. The cubic root of 1253674242 is about 1078.2717678251.

The spelling of 1253674242 in words is "one billion, two hundred fifty-three million, six hundred seventy-four thousand, two hundred forty-two".