1249284016 has 20 divisors (see below), whose sum is σ = 2421918400. Its totient is φ = 624272832.

The previous prime is 1249284007. The next prime is 1249284019. The reversal of 1249284016 is 6104829421.

It is not an unprimeable number, because it can be changed into a prime (1249284019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5950 + ... + 50338.

It is an arithmetic number, because the mean of its divisors is an integer number (121095920).

Almost surely, 2^1249284016 is an apocalyptic number.

1249284016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1249284016 is a deficient number, since it is larger than the sum of its proper divisors (1172634384).

1249284016 is a wasteful number, since it uses less digits than its factorization.

1249284016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46156 (or 46150 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1249284016 is about 35345.2120661342. The cubic root of 1249284016 is about 1077.0116336324.

The spelling of 1249284016 in words is "one billion, two hundred forty-nine million, two hundred eighty-four thousand, sixteen".