102025980 has 144 divisors (see below), whose sum is σ = 366912000. Its totient is φ = 23312448.

The previous prime is 102025961. The next prime is 102025997. The reversal of 102025980 is 89520201.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32521 + ... + 35519.

It is an arithmetic number, because the mean of its divisors is an integer number (2548000).

Almost surely, 2^102025980 is an apocalyptic number.

102025980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102025980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183456000).

102025980 is an abundant number, since it is smaller than the sum of its proper divisors (264886020).

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

102025980 is a wasteful number, since it uses less digits than its factorization.

102025980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 102025980 is about 10100.7910581301. The cubic root of 102025980 is about 467.2725384551.

It can be divided in two parts, 1020 and 25980, that added together give a cube (27000 = 30³).

The spelling of 102025980 in words is "one hundred two million, twenty-five thousand, nine hundred eighty".