28198962 has 64 divisors (see below), whose sum is σ = 70761600. Its totient is φ = 8245440.

The previous prime is 28198949. The next prime is 28198987. The reversal of 28198962 is 26989182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16408 + ... + 18044.

It is an arithmetic number, because the mean of its divisors is an integer number (1105650).

Almost surely, 2^28198962 is an apocalyptic number.

28198962 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28198962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35380800).

28198962 is an abundant number, since it is smaller than the sum of its proper divisors (42562638).

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

28198962 is a wasteful number, since it uses less digits than its factorization.

28198962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688 (or 1682 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 28198962 is about 5310.2694846872. The cubic root of 28198962 is about 304.3764452987.

It can be divided in two parts, 2819 and 8962, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 28198962 in words is "twenty-eight million, one hundred ninety-eight thousand, nine hundred sixty-two".