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1044020 = 22552201
BaseRepresentation
bin11111110111000110100
31222001010102
43332320310
5231402040
634213232
711605535
oct3767064
91861112
101044020
1165342a
12424218
132a7283
141d268c
15159515
hexfee34

1044020 has 12 divisors (see below), whose sum is σ = 2192484. Its totient is φ = 417600.

The previous prime is 1044019. The next prime is 1044023. The reversal of 1044020 is 204401.

Adding to 1044020 its reverse (204401), we get a palindrome (1248421).

It can be written as a sum of positive squares in 2 ways, for example, as 649636 + 394384 = 806^2 + 628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1043992 and 1044010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26081 + ... + 26120.

It is an arithmetic number, because the mean of its divisors is an integer number (182707).

21044020 is an apocalyptic number.

1044020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044020 is an abundant number, since it is smaller than the sum of its proper divisors (1148464).

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

1044020 is a wasteful number, since it uses less digits than its factorization.

1044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52210 (or 52208 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1044020 is about 1021.7729689124. The cubic root of 1044020 is about 101.4463142367.

The spelling of 1044020 in words is "one million, forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 52201 104402 208804 261005 522010 1044020