1244652242 has 8 divisors (see below), whose sum is σ = 1867543932. Its totient is φ = 622137600.

The previous prime is 1244652239. The next prime is 1244652251. The reversal of 1244652242 is 2422564421.

It can be written as a sum of positive squares in 2 ways, for example, as 1242633001 + 2019241 = 35251^2 + 1421^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1244652199 and 1244652208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85859 + ... + 99302.

Almost surely, 2^1244652242 is an apocalyptic number.

1244652242 is a deficient number, since it is larger than the sum of its proper divisors (622891690).

1244652242 is a wasteful number, since it uses less digits than its factorization.

1244652242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188524.

The product of its digits is 30720, while the sum is 32.

The square root of 1244652242 is about 35279.6292780976. The cubic root of 1244652242 is about 1075.6789630407.

The spelling of 1244652242 in words is "one billion, two hundred forty-four million, six hundred fifty-two thousand, two hundred forty-two".