28942814 has 12 divisors (see below), whose sum is σ = 45820584. Its totient is φ = 13709412.

The previous prime is 28942813. The next prime is 28942829. The reversal of 28942814 is 41824982.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28942811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19322 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (3818382).

Almost surely, 2^28942814 is an apocalyptic number.

28942814 is a deficient number, since it is larger than the sum of its proper divisors (16877770).

28942814 is a wasteful number, since it uses less digits than its factorization.

28942814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40127 (or 40108 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 28942814 is about 5379.8526002113. The cubic root of 28942814 is about 307.0296031182.

The spelling of 28942814 in words is "twenty-eight million, nine hundred forty-two thousand, eight hundred fourteen".