102640024 has 16 divisors (see below), whose sum is σ = 192681720. Its totient is φ = 51258240.

The previous prime is 102639997. The next prime is 102640049. The reversal of 102640024 is 420046201.

It is a junction number, because it is equal to n+sod(n) for n = 102639983 and 102640010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234 + ... + 14329.

Almost surely, 2^102640024 is an apocalyptic number.

It is an amenable number.

102640024 is a deficient number, since it is larger than the sum of its proper divisors (90041696).

102640024 is a wasteful number, since it uses less digits than its factorization.

102640024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15450 (or 15446 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 102640024 is about 10131.1412979980. The cubic root of 102640024 is about 468.2080916472.

Adding to 102640024 its reverse (420046201), we get a palindrome (522686225).

The spelling of 102640024 in words is "one hundred two million, six hundred forty thousand, twenty-four".