18828038 has 8 divisors (see below), whose sum is σ = 28775088. Its totient is φ = 9236344.

The previous prime is 18828037. The next prime is 18828049. The reversal of 18828038 is 83082881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×18828038³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18827992 and 18828010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18828037) 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, 88706 + ... + 88917.

It is an arithmetic number, because the mean of its divisors is an integer number (3596886).

Almost surely, 2^18828038 is an apocalyptic number.

18828038 is a deficient number, since it is larger than the sum of its proper divisors (9947050).

18828038 is a wasteful number, since it uses less digits than its factorization.

18828038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177678.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 18828038 is about 4339.1287143850. The cubic root of 18828038 is about 266.0326999203.

The spelling of 18828038 in words is "eighteen million, eight hundred twenty-eight thousand, thirty-eight".