14229978 has 32 divisors (see below), whose sum is σ = 33408384. Its totient is φ = 3955392.

The previous prime is 14229973. The next prime is 14229979. The reversal of 14229978 is 87992241.

14229978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (14229973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3025 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (1044012).

Almost surely, 2^14229978 is an apocalyptic number.

14229978 is an abundant number, since it is smaller than the sum of its proper divisors (19178406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14229978 is a wasteful number, since it uses less digits than its factorization.

14229978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206.

The product of its digits is 72576, while the sum is 42.

The square root of 14229978 is about 3772.2643067526. The cubic root of 14229978 is about 242.3267789062.

The spelling of 14229978 in words is "fourteen million, two hundred twenty-nine thousand, nine hundred seventy-eight".