28490862 has 8 divisors (see below), whose sum is σ = 56981736. Its totient is φ = 9496952.

The previous prime is 28490857. The next prime is 28490863. The reversal of 28490862 is 26809482.

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

28490862 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28490862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28490863) 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, 2374233 + ... + 2374244.

It is an arithmetic number, because the mean of its divisors is an integer number (7122717).

Almost surely, 2^28490862 is an apocalyptic number.

28490862 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.

28490862 is a wasteful number, since it uses less digits than its factorization.

28490862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748482.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 28490862 is about 5337.6832052867. The cubic root of 28490862 is about 305.4230874729.

The spelling of 28490862 in words is "twenty-eight million, four hundred ninety thousand, eight hundred sixty-two".