102720484 has 24 divisors (see below), whose sum is σ = 193632768. Its totient is φ = 47541120.

The previous prime is 102720467. The next prime is 102720491. The reversal of 102720484 is 484027201.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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, 15157 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (8068032).

Almost surely, 2^102720484 is an apocalyptic number.

It is an amenable number.

102720484 is a deficient number, since it is larger than the sum of its proper divisors (90912284).

102720484 is a wasteful number, since it uses less digits than its factorization.

102720484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36075 (or 36073 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 102720484 is about 10135.1114448732. Note that the first 3 decimals coincide. The cubic root of 102720484 is about 468.3304032046.

Adding to 102720484 its reverse (484027201), we get a palindrome (586747685).

The spelling of 102720484 in words is "one hundred two million, seven hundred twenty thousand, four hundred eighty-four".