1249446384 has 100 divisors (see below), whose sum is σ = 3806664840. Its totient is φ = 394554240.

The previous prime is 1249446343. The next prime is 1249446389. The reversal of 1249446384 is 4836449421.

1249446384 is a `hidden beast` number, since 1 + 2 + 4 + 9 + 4 + 4 + 638 + 4 = 666.

It is a super-2 number, since 2×1249446384² = 3122232532981350912, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249446389) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 747 + ... + 49994.

Almost surely, 2^1249446384 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 1249446384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1903332420).

1249446384 is an abundant number, since it is smaller than the sum of its proper divisors (2557218456).

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

1249446384 is a wasteful number, since it uses less digits than its factorization.

1249446384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50780 (or 50765 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 1249446384 is about 35347.5088796933. The cubic root of 1249446384 is about 1077.0582909303.

It can be divided in two parts, 124944 and 6384, that added together give a triangular number (131328 = T₅₁₂).

The spelling of 1249446384 in words is "one billion, two hundred forty-nine million, four hundred forty-six thousand, three hundred eighty-four".