1218052 has 48 divisors (see below), whose sum is σ = 2580480. Its totient is φ = 496800.
The previous prime is 1218043. The next prime is 1218089. The reversal of 1218052 is 2508121.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25893 + ... + 25939.
It is an arithmetic number, because the mean of its divisors is an integer number (53760).
21218052 is an apocalyptic number.
It is an amenable number.
1218052 is an abundant number, since it is smaller than the sum of its proper divisors (1362428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1218052 is a wasteful number, since it uses less digits than its factorization.
1218052 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 112 (or 110 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 19.
The square root of 1218052 is about 1103.6539312665. The cubic root of 1218052 is about 106.7960712456.
The spelling of 1218052 in words is "one million, two hundred eighteen thousand, fifty-two".
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