1006425 has 60 divisors (see below), whose sum is σ = 2160576. Its totient is φ = 453600.
The previous prime is 1006393. The next prime is 1006433. The reversal of 1006425 is 5246001.
It is a happy number.
It is not a de Polignac number, because 1006425 - 25 = 1006393 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1006398 and 1006407.
It is an unprimeable number.
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 59 ways as a sum of consecutive naturals, for example, 14140 + ... + 14210.
21006425 is an apocalyptic number.
1006425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1006425 is an abundant number, since it is smaller than the sum of its proper divisors (1154151).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1006425 is an equidigital number, since it uses as much as digits as its factorization.
1006425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100 (or 86 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 1006425 is about 1003.2073564324. The cubic root of 1006425 is about 100.2137096233.
It can be divided in two parts, 1006 and 425, that added together give a triangular number (1431 = T53).
The spelling of 1006425 in words is "one million, six thousand, four hundred twenty-five".
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