1244242415 has 8 divisors (see below), whose sum is σ = 1607944128. Its totient is φ = 918825120.

The previous prime is 1244242409. The next prime is 1244242423. The reversal of 1244242415 is 5142424421.

It is a happy number.

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

It is not a de Polignac number, because 1244242415 - 2¹² = 1244238319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9571031 + ... + 9571160.

It is an arithmetic number, because the mean of its divisors is an integer number (200993016).

Almost surely, 2^1244242415 is an apocalyptic number.

1244242415 is a deficient number, since it is larger than the sum of its proper divisors (363701713).

1244242415 is a wasteful number, since it uses less digits than its factorization.

1244242415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19142209.

The product of its digits is 10240, while the sum is 29.

The square root of 1244242415 is about 35273.8205330809. The cubic root of 1244242415 is about 1075.5608870401.

Adding to 1244242415 its reverse (5142424421), we get a palindrome (6386666836).

The spelling of 1244242415 in words is "one billion, two hundred forty-four million, two hundred forty-two thousand, four hundred fifteen".