102078284 has 24 divisors (see below), whose sum is σ = 222716928. Its totient is φ = 39770640.

The previous prime is 102078281. The next prime is 102078287. The reversal of 102078284 is 482870201.

It is an interprime number because it is at equal distance from previous prime (102078281) and next prime (102078287).

It is a self number, because there is not a number n which added to its sum of digits gives 102078284.

It is not an unprimeable number, because it can be changed into a prime (102078281) 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 7 ways as a sum of consecutive naturals, for example, 165404 + ... + 166019.

It is an arithmetic number, because the mean of its divisors is an integer number (9279872).

Almost surely, 2^102078284 is an apocalyptic number.

102078284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102078284 is an abundant number, since it is smaller than the sum of its proper divisors (120638644).

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

102078284 is a wasteful number, since it uses less digits than its factorization.

102078284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331445 (or 331443 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 102078284 is about 10103.3798305320. The cubic root of 102078284 is about 467.3523744850.

The spelling of 102078284 in words is "one hundred two million, seventy-eight thousand, two hundred eighty-four".