28741344 has 24 divisors (see below), whose sum is σ = 75446280. Its totient is φ = 9580416.

The previous prime is 28741331. The next prime is 28741351. The reversal of 28741344 is 44314782.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149599 + ... + 149790.

It is an arithmetic number, because the mean of its divisors is an integer number (3143595).

Almost surely, 2^28741344 is an apocalyptic number.

28741344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28741344 is an abundant number, since it is smaller than the sum of its proper divisors (46704936).

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

28741344 is a wasteful number, since it uses less digits than its factorization.

28741344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299402 (or 299394 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 28741344 is about 5361.0954104548. The cubic root of 28741344 is about 306.3155359399.

The spelling of 28741344 in words is "twenty-eight million, seven hundred forty-one thousand, three hundred forty-four".