1278984832 has 32 divisors (see below), whose sum is σ = 2610134100. Its totient is φ = 623892480.

The previous prime is 1278984797. The next prime is 1278984901. The reversal of 1278984832 is 2384898721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1157632576 + 121352256 = 34024^2 + 11016^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1278984832.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116607 + ... + 127102.

Almost surely, 2^1278984832 is an apocalyptic number.

It is an amenable number.

1278984832 is an abundant number, since it is smaller than the sum of its proper divisors (1331149268).

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

1278984832 is an equidigital number, since it uses as much as digits as its factorization.

1278984832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243764 (or 243752 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 1278984832 is about 35762.8974217694. The cubic root of 1278984832 is about 1085.4799301056.

The spelling of 1278984832 in words is "one billion, two hundred seventy-eight million, nine hundred eighty-four thousand, eight hundred thirty-two".