1042800 has 120 divisors (see below), whose sum is σ = 3690240. Its totient is φ = 249600.

The previous prime is 1042799. The next prime is 1042819. The reversal of 1042800 is 82401.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1042800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13161 + ... + 13239.

It is an arithmetic number, because the mean of its divisors is an integer number (30752).

2^1042800 is an apocalyptic number.

1042800 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 1042800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1845120).

1042800 is an abundant number, since it is smaller than the sum of its proper divisors (2647440).

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

1042800 is a wasteful number, since it uses less digits than its factorization.

1042800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1042800 is about 1021.1757928976. The cubic root of 1042800 is about 101.4067834668.

The spelling of 1042800 in words is "one million, forty-two thousand, eight hundred".