28849460 has 24 divisors (see below), whose sum is σ = 61031880. Its totient is φ = 11454464.

The previous prime is 28849441. The next prime is 28849507. The reversal of 28849460 is 6494882.

It can be written as a sum of positive squares in 4 ways, for example, as 7431076 + 21418384 = 2726^2 + 4628^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2525 + ... + 8004.

It is an arithmetic number, because the mean of its divisors is an integer number (2542995).

Almost surely, 2^28849460 is an apocalyptic number.

28849460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28849460 is an abundant number, since it is smaller than the sum of its proper divisors (32182420).

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

28849460 is a wasteful number, since it uses less digits than its factorization.

28849460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 28849460 is about 5371.1693326500. The cubic root of 28849460 is about 306.6991432734.

The spelling of 28849460 in words is "twenty-eight million, eight hundred forty-nine thousand, four hundred sixty".