1043020 has 36 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 378400.

The previous prime is 1043011. The next prime is 1043023. The reversal of 1043020 is 203401.

1043020 = T₇₉ + T₈₀ + ... + T₁₈₈.

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 = 1042988 and 1043006.

It is not an unprimeable number, because it can be changed into a prime (1043023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2205 + ... + 2635.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2^1043020 is an apocalyptic number.

1043020 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 1043020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206576).

1043020 is an abundant number, since it is smaller than the sum of its proper divisors (1370132).

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

1043020 is a wasteful number, since it uses less digits than its factorization.

1043020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 449 counting only the distinct ones).

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

The square root of 1043020 is about 1021.2835061823. The cubic root of 1043020 is about 101.4139142441.

Adding to 1043020 its reverse (203401), we get a palindrome (1246421).

The spelling of 1043020 in words is "one million, forty-three thousand, twenty".