1249677426 has 8 divisors (see below), whose sum is σ = 2499354864. Its totient is φ = 416559140.

The previous prime is 1249677419. The next prime is 1249677427. The reversal of 1249677426 is 6247769421.

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

1249677426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1249677427) 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, 104139780 + ... + 104139791.

It is an arithmetic number, because the mean of its divisors is an integer number (312419358).

Almost surely, 2^1249677426 is an apocalyptic number.

1249677426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249677426 is a wasteful number, since it uses less digits than its factorization.

1249677426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208279576.

The product of its digits is 1016064, while the sum is 48.

The square root of 1249677426 is about 35350.7768797236. The cubic root of 1249677426 is about 1077.1246750953.

The spelling of 1249677426 in words is "one billion, two hundred forty-nine million, six hundred seventy-seven thousand, four hundred twenty-six".