14428428 has 48 divisors (see below), whose sum is σ = 39809280. Its totient is φ = 3979584.

The previous prime is 14428417. The next prime is 14428451. The reversal of 14428428 is 82482441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526 + ... + 5397.

It is an arithmetic number, because the mean of its divisors is an integer number (829360).

Almost surely, 2^14428428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14428428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19904640).

14428428 is an abundant number, since it is smaller than the sum of its proper divisors (25380852).

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

14428428 is a wasteful number, since it uses less digits than its factorization.

14428428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966 (or 5964 counting only the distinct ones).

The product of its digits is 16384, while the sum is 33.

The square root of 14428428 is about 3798.4770632452. The cubic root of 14428428 is about 243.4480716581.

It can be divided in two parts, 1442 and 8428, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 14428428 in words is "fourteen million, four hundred twenty-eight thousand, four hundred twenty-eight".