102045424 has 40 divisors (see below), whose sum is σ = 225454320. Its totient is φ = 44325888.

The previous prime is 102045401. The next prime is 102045443. The reversal of 102045424 is 424540201.

102045424 = 273² + 274² + ... + 688².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102045395 and 102045404.

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, 10894 + ... + 17965.

It is an arithmetic number, because the mean of its divisors is an integer number (5636358).

Almost surely, 2^102045424 is an apocalyptic number.

It is an amenable number.

102045424 is an abundant number, since it is smaller than the sum of its proper divisors (123408896).

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

102045424 is a wasteful number, since it uses less digits than its factorization.

102045424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28897 (or 28891 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 102045424 is about 10101.7535111484. The cubic root of 102045424 is about 467.3022206665.

Adding to 102045424 its reverse (424540201), we get a palindrome (526585625).

The spelling of 102045424 in words is "one hundred two million, forty-five thousand, four hundred twenty-four".