115622028 has 18 divisors (see below), whose sum is σ = 292266884. Its totient is φ = 38540664.

The previous prime is 115621997. The next prime is 115622051. The reversal of 115622028 is 820226511.

It is a happy number.

115622028 is a `hidden beast` number, since 1 + 15 + 622 + 0 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 115621992 and 115622010.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1605826 + ... + 1605897.

Almost surely, 2^115622028 is an apocalyptic number.

115622028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115622028 is an abundant number, since it is smaller than the sum of its proper divisors (176644856).

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

115622028 is a wasteful number, since it uses less digits than its factorization.

115622028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211733 (or 3211728 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 115622028 is about 10752.7683877223. The cubic root of 115622028 is about 487.1696159880.

Adding to 115622028 its reverse (820226511), we get a palindrome (935848539).

The spelling of 115622028 in words is "one hundred fifteen million, six hundred twenty-two thousand, twenty-eight".