1652788380 has 48 divisors (see below), whose sum is σ = 4634048160. Its totient is φ = 440149248.
The previous prime is 1652788337. The next prime is 1652788381. The reversal of 1652788380 is 838872561.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1652788381) 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 15 ways as a sum of consecutive naturals, for example, 27226 + ... + 63614.
It is an arithmetic number, because the mean of its divisors is an integer number (96542670).
Almost surely, 21652788380 is an apocalyptic number.
1652788380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1652788380 is an abundant number, since it is smaller than the sum of its proper divisors (2981259780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1652788380 is a wasteful number, since it uses less digits than its factorization.
1652788380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37158 (or 37156 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 48.
The square root of 1652788380 is about 40654.5001199129. The cubic root of 1652788380 is about 1182.3310189160.
The spelling of 1652788380 in words is "one billion, six hundred fifty-two million, seven hundred eighty-eight thousand, three hundred eighty".
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