102302660 has 12 divisors (see below), whose sum is σ = 214835628. Its totient is φ = 40921056.

The previous prime is 102302659. The next prime is 102302663. The reversal of 102302660 is 66203201.

It can be written as a sum of positive squares in 2 ways, for example, as 46022656 + 56280004 = 6784^2 + 7502^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5115133 = 102302660 / (1 + 0 + 2 + 3 + 0 + 2 + 6 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (102302663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2557547 + ... + 2557586.

It is an arithmetic number, because the mean of its divisors is an integer number (17902969).

Almost surely, 2^102302660 is an apocalyptic number.

102302660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102302660 is an abundant number, since it is smaller than the sum of its proper divisors (112532968).

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

102302660 is a wasteful number, since it uses less digits than its factorization.

102302660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115142 (or 5115140 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 102302660 is about 10114.4777423256. The cubic root of 102302660 is about 467.6945495095.

Adding to 102302660 its reverse (66203201), we get a palindrome (168505861).

The spelling of 102302660 in words is "one hundred two million, three hundred two thousand, six hundred sixty".