1292004 has 48 divisors (see below), whose sum is σ = 3830400. Its totient is φ = 368928.

The previous prime is 1291999. The next prime is 1292009. The reversal of 1292004 is 4002921.

It is an interprime number because it is at equal distance from previous prime (1291999) and next prime (1292009).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1292009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99 + ... + 1610.

It is an arithmetic number, because the mean of its divisors is an integer number (79800).

2^1292004 is an apocalyptic number.

1292004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1292004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915200).

1292004 is an abundant number, since it is smaller than the sum of its proper divisors (2538396).

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

1292004 is a wasteful number, since it uses less digits than its factorization.

1292004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1292004 is about 1136.6635386076. The cubic root of 1292004 is about 108.9150644339.

Adding to 1292004 its reverse (4002921), we get a palindrome (5294925).

The spelling of 1292004 in words is "one million, two hundred ninety-two thousand, four".