102820260 has 24 divisors (see below), whose sum is σ = 287896896. Its totient is φ = 27418720.

The previous prime is 102820243. The next prime is 102820271. The reversal of 102820260 is 62028201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856776 + ... + 856895.

It is an arithmetic number, because the mean of its divisors is an integer number (11995704).

Almost surely, 2^102820260 is an apocalyptic number.

102820260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102820260 is an abundant number, since it is smaller than the sum of its proper divisors (185076636).

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

102820260 is a wasteful number, since it uses less digits than its factorization.

102820260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713683 (or 1713681 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 102820260 is about 10140.0325443265. The cubic root of 102820260 is about 468.4819893703.

Adding to 102820260 its reverse (62028201), we get a palindrome (164848461).

The spelling of 102820260 in words is "one hundred two million, eight hundred twenty thousand, two hundred sixty".