28098942 has 8 divisors (see below), whose sum is σ = 56197896. Its totient is φ = 9366312.

The previous prime is 28098937. The next prime is 28098953. The reversal of 28098942 is 24989082.

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

28098942 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28098894 and 28098903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341573 + ... + 2341584.

It is an arithmetic number, because the mean of its divisors is an integer number (7024737).

Almost surely, 2^28098942 is an apocalyptic number.

28098942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28098942 is a wasteful number, since it uses less digits than its factorization.

28098942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683162.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 28098942 is about 5300.8435177809. The cubic root of 28098942 is about 304.0161507463.

The spelling of 28098942 in words is "twenty-eight million, ninety-eight thousand, nine hundred forty-two".