1292028 has 24 divisors (see below), whose sum is σ = 3061632. Its totient is φ = 423984.

The previous prime is 1292023. The next prime is 1292029. The reversal of 1292028 is 8202921.

1292028 is nontrivially palindromic in base 8.

1292028 is a nontrivial binomial coefficient, being equal to C(1608, 2).

It is a junction number, because it is equal to n+sod(n) for n = 1291989 and 1292007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292023) 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, 1 + ... + 1607.

It is an arithmetic number, because the mean of its divisors is an integer number (127568).

2^1292028 is an apocalyptic number.

1292028 is the 1607-th triangular number and also the 804-th hexagonal number.

It is an amenable number.

1292028 is an abundant number, since it is smaller than the sum of its proper divisors (1769604).

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

1292028 is a wasteful number, since it uses less digits than its factorization.

1292028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1292028 is about 1136.6740957724. The cubic root of 1292028 is about 108.9157388243.

Adding to 1292028 its reverse (8202921), we get a palindrome (9494949).

The spelling of 1292028 in words is "one million, two hundred ninety-two thousand, twenty-eight".