1045020 has 24 divisors (see below), whose sum is σ = 2926224. Its totient is φ = 278656.

The previous prime is 1045013. The next prime is 1045021. The reversal of 1045020 is 205401.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1044987 and 1045005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8649 + ... + 8768.

It is an arithmetic number, because the mean of its divisors is an integer number (121926).

2^1045020 is an apocalyptic number.

1045020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045020 is an abundant number, since it is smaller than the sum of its proper divisors (1881204).

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

1045020 is a wasteful number, since it uses less digits than its factorization.

1045020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17429 (or 17427 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1045020 is about 1022.2621972860. The cubic root of 1045020 is about 101.4786935468.

The spelling of 1045020 in words is "one million, forty-five thousand, twenty".