28326088 has 16 divisors (see below), whose sum is σ = 60698880. Its totient is φ = 12139728.

The previous prime is 28326083. The next prime is 28326091. The reversal of 28326088 is 88062382.

It is a super-2 number, since 2×28326088² = 1604734522767488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28326083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252856 + ... + 252967.

It is an arithmetic number, because the mean of its divisors is an integer number (3793680).

Almost surely, 2^28326088 is an apocalyptic number.

28326088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28326088 is an abundant number, since it is smaller than the sum of its proper divisors (32372792).

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

28326088 is a wasteful number, since it uses less digits than its factorization.

28326088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505836 (or 505832 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 28326088 is about 5322.2258501495. The cubic root of 28326088 is about 304.8331542895.

The spelling of 28326088 in words is "twenty-eight million, three hundred twenty-six thousand, eighty-eight".