1292328 has 64 divisors (see below), whose sum is σ = 3724800. Its totient is φ = 414720.

The previous prime is 1292309. The next prime is 1292329. The reversal of 1292328 is 8232921.

It is a happy number.

It is a super-2 number, since 2×1292328² = 3340223319168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1292329) 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, 6600 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (58200).

2^1292328 is an apocalyptic number.

1292328 is a gapful number since it is divisible by the number (18) 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 1292328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862400).

1292328 is an abundant number, since it is smaller than the sum of its proper divisors (2432472).

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

1292328 is a wasteful number, since it uses less digits than its factorization.

1292328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 229 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1292328 is about 1136.8060520599. The cubic root of 1292328 is about 108.9241680000.

The spelling of 1292328 in words is "one million, two hundred ninety-two thousand, three hundred twenty-eight".