1252450442 has 8 divisors (see below), whose sum is σ = 1879004196. Its totient is φ = 626115712.

The previous prime is 1252450429. The next prime is 1252450477. The reversal of 1252450442 is 2440542521.

It can be written as a sum of positive squares in 2 ways, for example, as 1103634841 + 148815601 = 33221^2 + 12199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39623 + ... + 63834.

Almost surely, 2^1252450442 is an apocalyptic number.

1252450442 is a deficient number, since it is larger than the sum of its proper divisors (626553754).

1252450442 is a wasteful number, since it uses less digits than its factorization.

1252450442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109512.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1252450442 is about 35389.9765752960. The cubic root of 1252450442 is about 1077.9207945128.

Adding to 1252450442 its reverse (2440542521), we get a palindrome (3692992963).

The spelling of 1252450442 in words is "one billion, two hundred fifty-two million, four hundred fifty thousand, four hundred forty-two".