1030400 has 108 divisors (see below), whose sum is σ = 3041472. Its totient is φ = 337920.

The previous prime is 1030369. The next prime is 1030411. The reversal of 1030400 is 40301.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44789 + ... + 44811.

2^1030400 is an apocalyptic number.

1030400 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 1030400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520736).

1030400 is an abundant number, since it is smaller than the sum of its proper divisors (2011072).

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

1030400 is an equidigital number, since it uses as much as digits as its factorization.

1030400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1030400 is about 1015.0862032360. The cubic root of 1030400 is about 101.0032348734.

Adding to 1030400 its reverse (40301), we get a palindrome (1070701).

Subtracting from 1030400 its reverse (40301), we obtain a palindrome (990099).

The spelling of 1030400 in words is "one million, thirty thousand, four hundred".