1045800 has 144 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 236160.

The previous prime is 1045799. The next prime is 1045801. The reversal of 1045800 is 85401.

It is an interprime number because it is at equal distance from previous prime (1045799) and next prime (1045801).

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 (1045801) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12559 + ... + 12641.

It is an arithmetic number, because the mean of its divisors is an integer number (28210).

2^1045800 is an apocalyptic number.

1045800 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 1045800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1045800 is an abundant number, since it is smaller than the sum of its proper divisors (3016440).

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

1045800 is a wasteful number, since it uses less digits than its factorization.

1045800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1045800 is about 1022.6436329436. The cubic root of 1045800 is about 101.5039350719.

The spelling of 1045800 in words is "one million, forty-five thousand, eight hundred".