28341920 has 48 divisors (see below), whose sum is σ = 70489440. Its totient is φ = 10738944.

The previous prime is 28341899. The next prime is 28341931. The reversal of 28341920 is 2914382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622 + ... + 7701.

It is an arithmetic number, because the mean of its divisors is an integer number (1468530).

Almost surely, 2^28341920 is an apocalyptic number.

28341920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28341920 is an abundant number, since it is smaller than the sum of its proper divisors (42147520).

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

28341920 is a wasteful number, since it uses less digits than its factorization.

28341920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9357 (or 9349 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 28341920 is about 5323.7129900099. The cubic root of 28341920 is about 304.8899360995.

The spelling of 28341920 in words is "twenty-eight million, three hundred forty-one thousand, nine hundred twenty".