14013778 has 8 divisors (see below), whose sum is σ = 21037068. Its totient is φ = 7001424.

The previous prime is 14013761. The next prime is 14013799. The reversal of 14013778 is 87731041.

It can be written as a sum of positive squares in 2 ways, for example, as 12938409 + 1075369 = 3597^2 + 1037^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400 + ... + 5812.

Almost surely, 2^14013778 is an apocalyptic number.

14013778 is a deficient number, since it is larger than the sum of its proper divisors (7023290).

14013778 is a wasteful number, since it uses less digits than its factorization.

14013778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 14013778 is about 3743.4980967005. The cubic root of 14013778 is about 241.0932646380.

The spelling of 14013778 in words is "fourteen million, thirteen thousand, seven hundred seventy-eight".