1292788 has 12 divisors (see below), whose sum is σ = 2585632. Its totient is φ = 554040.

The previous prime is 1292783. The next prime is 1292789. The reversal of 1292788 is 8872921.

1292788 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23058 + ... + 23113.

2^1292788 is an apocalyptic number.

It is an amenable number.

1292788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1292788 is a wasteful number, since it uses less digits than its factorization.

1292788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46182 (or 46180 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1292788 is about 1137.0083552903. The cubic root of 1292788 is about 108.9370902028.

It can be divided in two parts, 129278 and 8, that added together give a triangular number (129286 = T₅₀₈).

The spelling of 1292788 in words is "one million, two hundred ninety-two thousand, seven hundred eighty-eight".