101028388 has 24 divisors (see below), whose sum is σ = 181009080. Its totient is φ = 49320960.

The previous prime is 101028353. The next prime is 101028409. The reversal of 101028388 is 883820101.

It can be written as a sum of positive squares in 4 ways, for example, as 42536484 + 58491904 = 6522^2 + 7648^2 .

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, 47508 + ... + 49588.

It is an arithmetic number, because the mean of its divisors is an integer number (7542045).

Almost surely, 2^101028388 is an apocalyptic number.

It is an amenable number.

101028388 is a deficient number, since it is larger than the sum of its proper divisors (79980692).

101028388 is a wasteful number, since it uses less digits than its factorization.

101028388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 101028388 is about 10051.2878776802. The cubic root of 101028388 is about 465.7445781077.

Adding to 101028388 its reverse (883820101), we get a palindrome (984848489).

The spelling of 101028388 in words is "one hundred one million, twenty-eight thousand, three hundred eighty-eight".