14128407 has 12 divisors (see below), whose sum is σ = 20607184. Its totient is φ = 9326880.

The previous prime is 14128379. The next prime is 14128409. The reversal of 14128407 is 70482141.

It is not a de Polignac number, because 14128407 - 2¹² = 14124311 is a prime.

It is a super-2 number, since 2×14128407² = 399223768715298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14128409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6694 + ... + 8547.

Almost surely, 2^14128407 is an apocalyptic number.

14128407 is a deficient number, since it is larger than the sum of its proper divisors (6478777).

14128407 is a wasteful number, since it uses less digits than its factorization.

14128407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15350 (or 15347 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 14128407 is about 3758.7773278022. Note that the first 3 decimals coincide. The cubic root of 14128407 is about 241.7488401227.

It can be divided in two parts, 14128 and 407, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 14128407 in words is "fourteen million, one hundred twenty-eight thousand, four hundred seven".