28180498 has 8 divisors (see below), whose sum is σ = 42298992. Its totient is φ = 14080836.

The previous prime is 28180487. The next prime is 28180499. The reversal of 28180498 is 89408182.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28180498.

It is not an unprimeable number, because it can be changed into a prime (28180499) 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, 40 + ... + 7507.

It is an arithmetic number, because the mean of its divisors is an integer number (5287374).

Almost surely, 2^28180498 is an apocalyptic number.

28180498 is a deficient number, since it is larger than the sum of its proper divisors (14118494).

28180498 is a wasteful number, since it uses less digits than its factorization.

28180498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 28180498 is about 5308.5306818365. The cubic root of 28180498 is about 304.3099980095.

The spelling of 28180498 in words is "twenty-eight million, one hundred eighty thousand, four hundred ninety-eight".