28150542 has 48 divisors (see below), whose sum is σ = 71964672. Its totient is φ = 7782480.

The previous prime is 28150541. The next prime is 28150543. The reversal of 28150542 is 24505182.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28150541) and next prime (28150543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28150541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303 + ... + 7509.

It is an arithmetic number, because the mean of its divisors is an integer number (1499264).

Almost surely, 2^28150542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28150542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35982336).

28150542 is an abundant number, since it is smaller than the sum of its proper divisors (43814130).

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

28150542 is a wasteful number, since it uses less digits than its factorization.

28150542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253 (or 7250 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 28150542 is about 5305.7084352610. The cubic root of 28150542 is about 304.2021321337.

The spelling of 28150542 in words is "twenty-eight million, one hundred fifty thousand, five hundred forty-two".