102045428 has 24 divisors (see below), whose sum is σ = 194046720. Its totient is φ = 46776960.

The previous prime is 102045401. The next prime is 102045443. The reversal of 102045428 is 824540201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102045397 and 102045406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19301 + ... + 24012.

It is an arithmetic number, because the mean of its divisors is an integer number (8085280).

Almost surely, 2^102045428 is an apocalyptic number.

It is an amenable number.

102045428 is a deficient number, since it is larger than the sum of its proper divisors (92001292).

102045428 is a wasteful number, since it uses less digits than its factorization.

102045428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43367 (or 43365 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 102045428 is about 10101.7537091339. The cubic root of 102045428 is about 467.3022267723.

Adding to 102045428 its reverse (824540201), we get a palindrome (926585629).

The spelling of 102045428 in words is "one hundred two million, forty-five thousand, four hundred twenty-eight".