28501344 has 36 divisors (see below), whose sum is σ = 81051516. Its totient is φ = 9500352.

The previous prime is 28501339. The next prime is 28501351. The reversal of 28501344 is 44310582.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49194 + ... + 49769.

It is an arithmetic number, because the mean of its divisors is an integer number (2251431).

Almost surely, 2^28501344 is an apocalyptic number.

28501344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28501344 is an abundant number, since it is smaller than the sum of its proper divisors (52550172).

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

28501344 is a wasteful number, since it uses less digits than its factorization.

28501344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98979 (or 98968 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 28501344 is about 5338.6650016647. The cubic root of 28501344 is about 305.4605386888.

The spelling of 28501344 in words is "twenty-eight million, five hundred one thousand, three hundred forty-four".