1292768328 has 32 divisors (see below), whose sum is σ = 3235492800. Its totient is φ = 430446528.

The previous prime is 1292768317. The next prime is 1292768353. The reversal of 1292768328 is 8238672921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7251 + ... + 51362.

It is an arithmetic number, because the mean of its divisors is an integer number (101109150).

Almost surely, 2^1292768328 is an apocalyptic number.

It is an amenable number.

1292768328 is an abundant number, since it is smaller than the sum of its proper divisors (1942724472).

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

1292768328 is a wasteful number, since it uses less digits than its factorization.

1292768328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59541 (or 59537 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 1292768328 is about 35955.0876511239. The cubic root of 1292768328 is about 1089.3653764478.

The spelling of 1292768328 in words is "one billion, two hundred ninety-two million, seven hundred sixty-eight thousand, three hundred twenty-eight".