1295800 has 96 divisors (see below), whose sum is σ = 3571200. Its totient is φ = 432000.

The previous prime is 1295783. The next prime is 1295803. The reversal of 1295800 is 85921.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295803) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 41785 + ... + 41815.

It is an arithmetic number, because the mean of its divisors is an integer number (37200).

2^1295800 is an apocalyptic number.

1295800 is a gapful number since it is divisible by the number (10) 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 1295800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1785600).

1295800 is an abundant number, since it is smaller than the sum of its proper divisors (2275400).

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

1295800 is a wasteful number, since it uses less digits than its factorization.

1295800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1295800 is about 1138.3321132253. The cubic root of 1295800 is about 109.0216268845.

It can be divided in two parts, 129 and 5800, that added together give a square (5929 = 77²).

The spelling of 1295800 in words is "one million, two hundred ninety-five thousand, eight hundred".