28541949 has 8 divisors (see below), whose sum is σ = 38116320. Its totient is φ = 18997776.

The previous prime is 28541939. The next prime is 28541983. The reversal of 28541949 is 94914582.

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

It is not a de Polignac number, because 28541949 - 2⁸ = 28541693 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 28541949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28541939) 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, 5242 + ... + 9195.

It is an arithmetic number, because the mean of its divisors is an integer number (4764540).

Almost surely, 2^28541949 is an apocalyptic number.

It is an amenable number.

28541949 is a deficient number, since it is larger than the sum of its proper divisors (9574371).

28541949 is a wasteful number, since it uses less digits than its factorization.

28541949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15099.

The product of its digits is 103680, while the sum is 42.

The square root of 28541949 is about 5342.4665651738. The cubic root of 28541949 is about 305.6055299761.

The spelling of 28541949 in words is "twenty-eight million, five hundred forty-one thousand, nine hundred forty-nine".