102643224 has 32 divisors (see below), whose sum is σ = 257016240. Its totient is φ = 34160000.

The previous prime is 102643207. The next prime is 102643237. The reversal of 102643224 is 422346201.

It is a super-2 number, since 2×102643224² = 21071262866228352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 102643194 and 102643203.

It is a congruent number.

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, 13774 + ... + 19874.

Almost surely, 2^102643224 is an apocalyptic number.

It is an amenable number.

102643224 is an abundant number, since it is smaller than the sum of its proper divisors (154373016).

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

102643224 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 102643224 = (234124026)₉.

102643224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811 (or 6807 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 102643224 is about 10131.2992256670. The cubic root of 102643224 is about 468.2129573590.

Adding to 102643224 its reverse (422346201), we get a palindrome (524989425).

The spelling of 102643224 in words is "one hundred two million, six hundred forty-three thousand, two hundred twenty-four".