102305940 has 48 divisors (see below), whose sum is σ = 312500160. Its totient is φ = 24801280.

The previous prime is 102305897. The next prime is 102306007. The reversal of 102305940 is 49503201.

It is a self number, because there is not a number n which added to its sum of digits gives 102305940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76845 + ... + 78164.

It is an arithmetic number, because the mean of its divisors is an integer number (6510420).

Almost surely, 2^102305940 is an apocalyptic number.

102305940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102305940 is an abundant number, since it is smaller than the sum of its proper divisors (210194220).

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

102305940 is a wasteful number, since it uses less digits than its factorization.

102305940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155032 (or 155030 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 102305940 is about 10114.6398848402. The cubic root of 102305940 is about 467.6995478211.

The spelling of 102305940 in words is "one hundred two million, three hundred five thousand, nine hundred forty".