102940228 has 12 divisors (see below), whose sum is σ = 180260752. Its totient is φ = 51437160.

The previous prime is 102940223. The next prime is 102940241. The reversal of 102940228 is 822049201.

It is a junction number, because it is equal to n+sod(n) for n = 102940196 and 102940205.

It is not an unprimeable number, because it can be changed into a prime (102940223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378 + ... + 14353.

Almost surely, 2^102940228 is an apocalyptic number.

It is an amenable number.

102940228 is a deficient number, since it is larger than the sum of its proper divisors (77320524).

102940228 is a wasteful number, since it uses less digits than its factorization.

102940228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16482 (or 16480 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 102940228 is about 10145.9463826693. The cubic root of 102940228 is about 468.6641227449.

Adding to 102940228 its reverse (822049201), we get a palindrome (924989429).

The spelling of 102940228 in words is "one hundred two million, nine hundred forty thousand, two hundred twenty-eight".