102255400 has 96 divisors (see below), whose sum is σ = 260295840. Its totient is φ = 37128960.

The previous prime is 102255389. The next prime is 102255403. The reversal of 102255400 is 4552201.

It is not an unprimeable number, because it can be changed into a prime (102255403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173907 + ... + 174493.

It is an arithmetic number, because the mean of its divisors is an integer number (2711415).

Almost surely, 2^102255400 is an apocalyptic number.

102255400 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 102255400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130147920).

102255400 is an abundant number, since it is smaller than the sum of its proper divisors (158040440).

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

102255400 is a wasteful number, since it uses less digits than its factorization.

102255400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 102255400 is about 10112.1412173684. The cubic root of 102255400 is about 467.6225192908.

It can be divided in two parts, 10225 and 5400, that added together give a 6-th power (15625 = 5⁶).

The spelling of 102255400 in words is "one hundred two million, two hundred fifty-five thousand, four hundred".