28223414 has 4 divisors (see below), whose sum is σ = 42335124. Its totient is φ = 14111706.

The previous prime is 28223389. The next prime is 28223473. The reversal of 28223414 is 41432282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41432282 = 2 ⋅20716141.

It is a super-2 number, since 2×28223414² = 1593122195630792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7055852 + ... + 7055855.

It is an arithmetic number, because the mean of its divisors is an integer number (10583781).

Almost surely, 2^28223414 is an apocalyptic number.

28223414 is a deficient number, since it is larger than the sum of its proper divisors (14111710).

28223414 is a wasteful number, since it uses less digits than its factorization.

28223414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111709.

The product of its digits is 3072, while the sum is 26.

The square root of 28223414 is about 5312.5713171684. The cubic root of 28223414 is about 304.4643972672.

Adding to 28223414 its reverse (41432282), we get a palindrome (69655696).

The spelling of 28223414 in words is "twenty-eight million, two hundred twenty-three thousand, four hundred fourteen".