28385376 has 48 divisors (see below), whose sum is σ = 78899184. Its totient is φ = 8904704.

The previous prime is 28385363. The next prime is 28385377. The reversal of 28385376 is 67358382.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×28385376² = 1611459141322752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28385377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7065 + ... + 10328.

It is an arithmetic number, because the mean of its divisors is an integer number (1643733).

Almost surely, 2^28385376 is an apocalyptic number.

It is an amenable number.

28385376 is an abundant number, since it is smaller than the sum of its proper divisors (50513808).

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

28385376 is a wasteful number, since it uses less digits than its factorization.

28385376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17423 (or 17415 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 28385376 is about 5327.7927887635. The cubic root of 28385376 is about 305.0456833838.

The spelling of 28385376 in words is "twenty-eight million, three hundred eighty-five thousand, three hundred seventy-six".