28445414 has 8 divisors (see below), whose sum is σ = 44044608. Its totient is φ = 13763880.

The previous prime is 28445401. The next prime is 28445429. The reversal of 28445414 is 41454482.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229337 + ... + 229460.

It is an arithmetic number, because the mean of its divisors is an integer number (5505576).

Almost surely, 2^28445414 is an apocalyptic number.

28445414 is a deficient number, since it is larger than the sum of its proper divisors (15599194).

28445414 is a wasteful number, since it uses less digits than its factorization.

28445414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458830.

The product of its digits is 20480, while the sum is 32.

The square root of 28445414 is about 5333.4242283921. The cubic root of 28445414 is about 305.2605996333.

Adding to 28445414 its reverse (41454482), we get a palindrome (69899896).

The spelling of 28445414 in words is "twenty-eight million, four hundred forty-five thousand, four hundred fourteen".