28412582 has 8 divisors (see below), whose sum is σ = 46493352. Its totient is φ = 12914800.

The previous prime is 28412569. The next prime is 28412597. The reversal of 28412582 is 28521482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645719 + ... + 645762.

It is an arithmetic number, because the mean of its divisors is an integer number (5811669).

Almost surely, 2^28412582 is an apocalyptic number.

28412582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28412582 is a deficient number, since it is larger than the sum of its proper divisors (18080770).

28412582 is a wasteful number, since it uses less digits than its factorization.

28412582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291494.

The product of its digits is 10240, while the sum is 32.

The square root of 28412582 is about 5330.3453921861. The cubic root of 28412582 is about 305.1431094064.

Subtracting 28412582 from its reverse (28521482), we obtain a square (108900 = 330²).

The spelling of 28412582 in words is "twenty-eight million, four hundred twelve thousand, five hundred eighty-two".