102244720 has 40 divisors (see below), whose sum is σ = 245921760. Its totient is φ = 39486720.

The previous prime is 102244717. The next prime is 102244721. The reversal of 102244720 is 27442201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 102244691 and 102244700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102244721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19716 + ... + 24355.

It is an arithmetic number, because the mean of its divisors is an integer number (6148044).

Almost surely, 2^102244720 is an apocalyptic number.

102244720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102244720 is an abundant number, since it is smaller than the sum of its proper divisors (143677040).

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

102244720 is a wasteful number, since it uses less digits than its factorization.

102244720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44113 (or 44107 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 102244720 is about 10111.6131255107. The cubic root of 102244720 is about 467.6062385455.

Adding to 102244720 its reverse (27442201), we get a palindrome (129686921).

The spelling of 102244720 in words is "one hundred two million, two hundred forty-four thousand, seven hundred twenty".