1249103424 has 112 divisors (see below), whose sum is σ = 3594250368. Its totient is φ = 381247488.

The previous prime is 1249103413. The next prime is 1249103459. The reversal of 1249103424 is 4243019421.

It is a junction number, because it is equal to n+sod(n) for n = 1249103391 and 1249103400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115597 + ... + 125939.

Almost surely, 2^1249103424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1249103424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797125184).

1249103424 is an abundant number, since it is smaller than the sum of its proper divisors (2345146944).

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

1249103424 is a wasteful number, since it uses less digits than its factorization.

1249103424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10412 (or 10402 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1249103424 is about 35342.6572854957. The cubic root of 1249103424 is about 1076.9597348233.

The spelling of 1249103424 in words is "one billion, two hundred forty-nine million, one hundred three thousand, four hundred twenty-four".