28167408 has 60 divisors (see below), whose sum is σ = 80680600. Its totient is φ = 9168768.

The previous prime is 28167383. The next prime is 28167427. The reversal of 28167408 is 80476182.

It is a super-3 number, since 3×28167408³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3918 + ... + 8466.

Almost surely, 2^28167408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28167408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40340300).

28167408 is an abundant number, since it is smaller than the sum of its proper divisors (52513192).

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

28167408 is a wasteful number, since it uses less digits than its factorization.

28167408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4597 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28167408 is about 5307.2976174321. The cubic root of 28167408 is about 304.2628728096.

The spelling of 28167408 in words is "twenty-eight million, one hundred sixty-seven thousand, four hundred eight".