28498830 has 16 divisors (see below), whose sum is σ = 68397264. Its totient is φ = 7599680.

The previous prime is 28498823. The next prime is 28498853. The reversal of 28498830 is 3889482.

It is a happy number.

It is a super-2 number, since 2×28498830² = 1624366622737800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474951 + ... + 475010.

It is an arithmetic number, because the mean of its divisors is an integer number (4274829).

Almost surely, 2^28498830 is an apocalyptic number.

28498830 is an abundant number, since it is smaller than the sum of its proper divisors (39898434).

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

28498830 is a wasteful number, since it uses less digits than its factorization.

28498830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949971.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 28498830 is about 5338.4295443510. The cubic root of 28498830 is about 305.4515572367.

The spelling of 28498830 in words is "twenty-eight million, four hundred ninety-eight thousand, eight hundred thirty".