1023020 has 12 divisors (see below), whose sum is σ = 2148384. Its totient is φ = 409200.

The previous prime is 1023019. The next prime is 1023037. The reversal of 1023020 is 203201.

It is a junction number, because it is equal to n+sod(n) for n = 1022989 and 1023007.

It is an unprimeable number.

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, 25556 + ... + 25595.

It is an arithmetic number, because the mean of its divisors is an integer number (179032).

2^1023020 is an apocalyptic number.

1023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023020 is an abundant number, since it is smaller than the sum of its proper divisors (1125364).

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

1023020 is a wasteful number, since it uses less digits than its factorization.

1023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51160 (or 51158 counting only the distinct ones).

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

The square root of 1023020 is about 1011.4445115774. Note that the first 3 decimals coincide. The cubic root of 1023020 is about 100.7615194935.

Adding to 1023020 its reverse (203201), we get a palindrome (1226221).

The spelling of 1023020 in words is "one million, twenty-three thousand, twenty".