28918414 has 16 divisors (see below), whose sum is σ = 50133600. Its totient is φ = 12253824.

The previous prime is 28918397. The next prime is 28918433. The reversal of 28918414 is 41481982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10359 + ... + 12850.

It is an arithmetic number, because the mean of its divisors is an integer number (3133350).

Almost surely, 2^28918414 is an apocalyptic number.

28918414 is a deficient number, since it is larger than the sum of its proper divisors (21215186).

28918414 is a wasteful number, since it uses less digits than its factorization.

28918414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23307.

The product of its digits is 18432, while the sum is 37.

The square root of 28918414 is about 5377.5844019411. The cubic root of 28918414 is about 306.9432992718.

The spelling of 28918414 in words is "twenty-eight million, nine hundred eighteen thousand, four hundred fourteen".