28006352 has 40 divisors (see below), whose sum is σ = 59540832. Its totient is φ = 12656000.

The previous prime is 28006343. The next prime is 28006409. The reversal of 28006352 is 25360082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39602 + ... + 40302.

Almost surely, 2^28006352 is an apocalyptic number.

28006352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28006352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29770416).

28006352 is an abundant number, since it is smaller than the sum of its proper divisors (31534480).

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

28006352 is a wasteful number, since it uses less digits than its factorization.

28006352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 28006352 is about 5292.1027956758. The cubic root of 28006352 is about 303.6818578480.

The spelling of 28006352 in words is "twenty-eight million, six thousand, three hundred fifty-two".