28818941 has 8 divisors (see below), whose sum is σ = 29597568. Its totient is φ = 28044000.

The previous prime is 28818929. The next prime is 28818947. The reversal of 28818941 is 14981882.

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

It is not a de Polignac number, because 28818941 - 2¹⁰ = 28817917 is a prime.

It is a super-2 number, since 2×28818941² = 1661062720722962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28818947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22796 + ... + 24026.

It is an arithmetic number, because the mean of its divisors is an integer number (3699696).

Almost surely, 2^28818941 is an apocalyptic number.

It is an amenable number.

28818941 is a deficient number, since it is larger than the sum of its proper divisors (778627).

28818941 is a wasteful number, since it uses less digits than its factorization.

28818941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its digits is 36864, while the sum is 41.

The square root of 28818941 is about 5368.3275794236. The cubic root of 28818941 is about 306.5909557637.

The spelling of 28818941 in words is "twenty-eight million, eight hundred eighteen thousand, nine hundred forty-one".