102800420 has 24 divisors (see below), whose sum is σ = 219542400. Its totient is φ = 40422752.

The previous prime is 102800417. The next prime is 102800437. The reversal of 102800420 is 24008201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42380 + ... + 44739.

It is an arithmetic number, because the mean of its divisors is an integer number (9147600).

Almost surely, 2^102800420 is an apocalyptic number.

102800420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102800420 is an abundant number, since it is smaller than the sum of its proper divisors (116741980).

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

102800420 is a wasteful number, since it uses less digits than its factorization.

102800420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87187 (or 87185 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 102800420 is about 10139.0541965215. The cubic root of 102800420 is about 468.4518549702.

Adding to 102800420 its reverse (24008201), we get a palindrome (126808621).

The spelling of 102800420 in words is "one hundred two million, eight hundred thousand, four hundred twenty".