1249372944 has 80 divisors (see below), whose sum is σ = 3604432000. Its totient is φ = 414336384.

The previous prime is 1249372937. The next prime is 1249373009. The reversal of 1249372944 is 4492739421.

1249372944 is a `hidden beast` number, since 1 + 2 + 493 + 72 + 94 + 4 = 666.

1249372944 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1249372944.

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, 78702 + ... + 93234.

It is an arithmetic number, because the mean of its divisors is an integer number (45055400).

Almost surely, 2^1249372944 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 1249372944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1802216000).

1249372944 is an abundant number, since it is smaller than the sum of its proper divisors (2355059056).

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

1249372944 is a wasteful number, since it uses less digits than its factorization.

1249372944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14749 (or 14737 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1249372944 is about 35346.4700359173. The cubic root of 1249372944 is about 1077.0371880611.

The spelling of 1249372944 in words is "one billion, two hundred forty-nine million, three hundred seventy-two thousand, nine hundred forty-four".