14257406 has 4 divisors (see below), whose sum is σ = 21386112. Its totient is φ = 7128702.

The previous prime is 14257343. The next prime is 14257421. The reversal of 14257406 is 60475241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60475241 = 127 ⋅476183.

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, 3564350 + ... + 3564353.

It is an arithmetic number, because the mean of its divisors is an integer number (5346528).

Almost surely, 2^14257406 is an apocalyptic number.

14257406 is a deficient number, since it is larger than the sum of its proper divisors (7128706).

14257406 is an equidigital number, since it uses as much as digits as its factorization.

14257406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128705.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 14257406 is about 3775.8980388776. The cubic root of 14257406 is about 242.4823723326.

The spelling of 14257406 in words is "fourteen million, two hundred fifty-seven thousand, four hundred six".