1249944395 has 8 divisors (see below), whose sum is σ = 1714209504. Its totient is φ = 857104704.

The previous prime is 1249944389. The next prime is 1249944419. The reversal of 1249944395 is 5934499421.

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

It is a cyclic number.

It is not a de Polignac number, because 1249944395 - 2⁸ = 1249944139 is a prime.

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, 17856314 + ... + 17856383.

It is an arithmetic number, because the mean of its divisors is an integer number (214276188).

Almost surely, 2^1249944395 is an apocalyptic number.

1249944395 is a deficient number, since it is larger than the sum of its proper divisors (464265109).

1249944395 is an equidigital number, since it uses as much as digits as its factorization.

1249944395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35712709.

The product of its digits is 1399680, while the sum is 50.

The square root of 1249944395 is about 35354.5526771306. The cubic root of 1249944395 is about 1077.2013718003.

The spelling of 1249944395 in words is "one billion, two hundred forty-nine million, nine hundred forty-four thousand, three hundred ninety-five".