1030420 has 12 divisors (see below), whose sum is σ = 2163924. Its totient is φ = 412160.

The previous prime is 1030417. The next prime is 1030429. The reversal of 1030420 is 240301.

It can be written as a sum of positive squares in 2 ways, for example, as 104976 + 925444 = 324^2 + 962^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1030397 and 1030406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030429) 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 3 ways as a sum of consecutive naturals, for example, 25741 + ... + 25780.

It is an arithmetic number, because the mean of its divisors is an integer number (180327).

2^1030420 is an apocalyptic number.

1030420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030420 is an abundant number, since it is smaller than the sum of its proper divisors (1133504).

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

1030420 is a wasteful number, since it uses less digits than its factorization.

1030420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51530 (or 51528 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1030420 is about 1015.0960545682. The cubic root of 1030420 is about 101.0038883580.

Adding to 1030420 its reverse (240301), we get a palindrome (1270721).

The spelling of 1030420 in words is "one million, thirty thousand, four hundred twenty".