14240978 has 4 divisors (see below), whose sum is σ = 21361470. Its totient is φ = 7120488.

The previous prime is 14240969. The next prime is 14240983. The reversal of 14240978 is 87904241.

14240978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 2455489 = 3433^2 + 1567^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560243 + ... + 3560246.

Almost surely, 2^14240978 is an apocalyptic number.

14240978 is a deficient number, since it is larger than the sum of its proper divisors (7120492).

14240978 is an equidigital number, since it uses as much as digits as its factorization.

14240978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120491.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 14240978 is about 3773.7220353386. The cubic root of 14240978 is about 242.3892036458.

The spelling of 14240978 in words is "fourteen million, two hundred forty thousand, nine hundred seventy-eight".