28234149 has 8 divisors (see below), whose sum is σ = 38860032. Its totient is φ = 18215520.

The previous prime is 28234111. The next prime is 28234153. The reversal of 28234149 is 94143282.

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

It is not a de Polignac number, because 28234149 - 2⁷ = 28234021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28234109) 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, 151704 + ... + 151889.

It is an arithmetic number, because the mean of its divisors is an integer number (4857504).

Almost surely, 2^28234149 is an apocalyptic number.

It is an amenable number.

28234149 is a deficient number, since it is larger than the sum of its proper divisors (10625883).

28234149 is a wasteful number, since it uses less digits than its factorization.

28234149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303627.

The product of its digits is 13824, while the sum is 33.

The square root of 28234149 is about 5313.5815604919. The cubic root of 28234149 is about 304.5029941924.

The spelling of 28234149 in words is "twenty-eight million, two hundred thirty-four thousand, one hundred forty-nine".