28481834 has 16 divisors (see below), whose sum is σ = 45914688. Its totient is φ = 13202112.

The previous prime is 28481833. The next prime is 28481891. The reversal of 28481834 is 43818482.

It is a super-2 number, since 2×28481834² = 1622429736007112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28481833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3974 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (2869668).

Almost surely, 2^28481834 is an apocalyptic number.

28481834 is a deficient number, since it is larger than the sum of its proper divisors (17432854).

28481834 is a wasteful number, since it uses less digits than its factorization.

28481834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12589.

The product of its digits is 49152, while the sum is 38.

The square root of 28481834 is about 5336.8374530240. The cubic root of 28481834 is about 305.3908239010.

The spelling of 28481834 in words is "twenty-eight million, four hundred eighty-one thousand, eight hundred thirty-four".