102020260 has 24 divisors (see below), whose sum is σ = 221631480. Its totient is φ = 39400704.

The previous prime is 102020251. The next prime is 102020273. The reversal of 102020260 is 62020201.

102020260 = T₂₇₉ + T₂₈₀ + ... + T₈₅₈.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 736164 + 101284096 = 858^2 + 10064^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102020260.

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, 87369 + ... + 88528.

It is an arithmetic number, because the mean of its divisors is an integer number (9234645).

Almost surely, 2^102020260 is an apocalyptic number.

102020260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020260 is an abundant number, since it is smaller than the sum of its proper divisors (119611220).

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

102020260 is a wasteful number, since it uses less digits than its factorization.

102020260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175935 (or 175933 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102020260 is about 10100.5079080213. The cubic root of 102020260 is about 467.2638058791.

Adding to 102020260 its reverse (62020201), we get a palindrome (164040461).

The spelling of 102020260 in words is "one hundred two million, twenty thousand, two hundred sixty".