1269630242 has 8 divisors (see below), whose sum is σ = 1904916396. Its totient is φ = 634658112.

The previous prime is 1269630239. The next prime is 1269630253. The reversal of 1269630242 is 2420369621.

It can be written as a sum of positive squares in 2 ways, for example, as 1222830961 + 46799281 = 34969^2 + 6841^2 .

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

It is a super-2 number, since 2×1269630242² = 3223921902801957128, which contains 22 as substring.

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, 68123 + ... + 84734.

Almost surely, 2^1269630242 is an apocalyptic number.

1269630242 is a deficient number, since it is larger than the sum of its proper divisors (635286154).

1269630242 is a wasteful number, since it uses less digits than its factorization.

1269630242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157012.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1269630242 is about 35631.8711549085. The cubic root of 1269630242 is about 1082.8270247778.

Adding to 1269630242 its reverse (2420369621), we get a palindrome (3689999863).

The spelling of 1269630242 in words is "one billion, two hundred sixty-nine million, six hundred thirty thousand, two hundred forty-two".