1189393824 has 48 divisors (see below), whose sum is σ = 3154370688. Its totient is φ = 392374272.

The previous prime is 1189393813. The next prime is 1189393853. The reversal of 1189393824 is 4283939811.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54552 + ... + 73175.

It is an arithmetic number, because the mean of its divisors is an integer number (65716056).

Almost surely, 2^1189393824 is an apocalyptic number.

It is an amenable number.

1189393824 is an abundant number, since it is smaller than the sum of its proper divisors (1964976864).

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

1189393824 is a wasteful number, since it uses less digits than its factorization.

1189393824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127837 (or 127829 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 1189393824 is about 34487.5894199638. The cubic root of 1189393824 is about 1059.5185377266.

The spelling of 1189393824 in words is "one billion, one hundred eighty-nine million, three hundred ninety-three thousand, eight hundred twenty-four".