14239287394 has 4 divisors (see below), whose sum is σ = 21358931094. Its totient is φ = 7119643696.

The previous prime is 14239287379. The next prime is 14239287407. The reversal of 14239287394 is 49378293241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49378293241 = 19 ⋅2598857539.

It can be written as a sum of positive squares in only one way, i.e., 14110351369 + 128936025 = 118787^2 + 11355^2 .

It is a super-2 number, since 2×14239287394² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3559821847 + ... + 3559821850.

Almost surely, 2^14239287394 is an apocalyptic number.

14239287394 is a deficient number, since it is larger than the sum of its proper divisors (7119643700).

14239287394 is an equidigital number, since it uses as much as digits as its factorization.

14239287394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7119643699.

The product of its digits is 2612736, while the sum is 52.

The spelling of 14239287394 in words is "fourteen billion, two hundred thirty-nine million, two hundred eighty-seven thousand, three hundred ninety-four".