1249838794 has 16 divisors (see below), whose sum is σ = 1891058400. Its totient is φ = 619499664.

The previous prime is 1249838783. The next prime is 1249838801. The reversal of 1249838794 is 4978389421.

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, 207477 + ... + 213415.

It is an arithmetic number, because the mean of its divisors is an integer number (118191150).

Almost surely, 2^1249838794 is an apocalyptic number.

1249838794 is a deficient number, since it is larger than the sum of its proper divisors (641219606).

1249838794 is a wasteful number, since it uses less digits than its factorization.

1249838794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6837.

The product of its digits is 3483648, while the sum is 55.

The square root of 1249838794 is about 35353.0591887039. The cubic root of 1249838794 is about 1077.1710353186.

The spelling of 1249838794 in words is "one billion, two hundred forty-nine million, eight hundred thirty-eight thousand, seven hundred ninety-four".