28149792 has 192 divisors, whose sum is σ = 89994240. Its totient is φ = 7603200.

The previous prime is 28149761. The next prime is 28149809. The reversal of 28149792 is 29794182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461442 + ... + 461502.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^28149792 is an apocalyptic number.

28149792 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 28149792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44997120).

28149792 is an abundant number, since it is smaller than the sum of its proper divisors (61844448).

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

28149792 is a wasteful number, since it uses less digits than its factorization.

28149792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 119 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 28149792 is about 5305.6377561986. The cubic root of 28149792 is about 304.1994305442.

The spelling of 28149792 in words is "twenty-eight million, one hundred forty-nine thousand, seven hundred ninety-two".