28242552 has 64 divisors (see below), whose sum is σ = 76728960. Its totient is φ = 8611200.

The previous prime is 28242527. The next prime is 28242553. The reversal of 28242552 is 25524282.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28242553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40527 + ... + 41217.

It is an arithmetic number, because the mean of its divisors is an integer number (1198890).

Almost surely, 2^28242552 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 28242552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38364480).

28242552 is an abundant number, since it is smaller than the sum of its proper divisors (48486408).

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

28242552 is a wasteful number, since it uses less digits than its factorization.

28242552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 840 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 28242552 is about 5314.3722112776. The cubic root of 28242552 is about 304.5331997526.

The spelling of 28242552 in words is "twenty-eight million, two hundred forty-two thousand, five hundred fifty-two".