28251496 has 64 divisors (see below), whose sum is σ = 65882880. Its totient is φ = 11059200.

The previous prime is 28251493. The next prime is 28251497. The reversal of 28251496 is 69415282.

It is not an unprimeable number, because it can be changed into a prime (28251493) 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 15 ways as a sum of consecutive naturals, for example, 109800 + ... + 110056.

It is an arithmetic number, because the mean of its divisors is an integer number (1029420).

Almost surely, 2^28251496 is an apocalyptic number.

28251496 is a gapful number since it is divisible by the number (26) 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 28251496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32941440).

28251496 is an abundant number, since it is smaller than the sum of its proper divisors (37631384).

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

28251496 is a wasteful number, since it uses less digits than its factorization.

28251496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 430 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 28251496 is about 5315.2136363461. The cubic root of 28251496 is about 304.5653434185.

The spelling of 28251496 in words is "twenty-eight million, two hundred fifty-one thousand, four hundred ninety-six".