1292928384 has 64 divisors (see below), whose sum is σ = 3746566080. Its totient is φ = 391795200.

The previous prime is 1292928383. The next prime is 1292928443. The reversal of 1292928384 is 4838292921.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292928383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148822 + ... + 157269.

It is an arithmetic number, because the mean of its divisors is an integer number (58540095).

Almost surely, 2^1292928384 is an apocalyptic number.

It is an amenable number.

1292928384 is an abundant number, since it is smaller than the sum of its proper divisors (2453637696).

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

1292928384 is a wasteful number, since it uses less digits than its factorization.

1292928384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306119 (or 306107 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1292928384 is about 35957.3133590373. The cubic root of 1292928384 is about 1089.4103322391.

The spelling of 1292928384 in words is "one billion, two hundred ninety-two million, nine hundred twenty-eight thousand, three hundred eighty-four".