28340214 has 16 divisors (see below), whose sum is σ = 64777728. Its totient is φ = 8097192.

The previous prime is 28340203. The next prime is 28340219. The reversal of 28340214 is 41204382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28340219) 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, 337342 + ... + 337425.

It is an arithmetic number, because the mean of its divisors is an integer number (4048608).

Almost surely, 2^28340214 is an apocalyptic number.

28340214 is an abundant number, since it is smaller than the sum of its proper divisors (36437514).

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

28340214 is a wasteful number, since it uses less digits than its factorization.

28340214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674779.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28340214 is about 5323.5527610798. The cubic root of 28340214 is about 304.8838185103.

Adding to 28340214 its reverse (41204382), we get a palindrome (69544596).

The spelling of 28340214 in words is "twenty-eight million, three hundred forty thousand, two hundred fourteen".