14142978 has 32 divisors (see below), whose sum is σ = 31624320. Its totient is φ = 4685040.

The previous prime is 14142971. The next prime is 14142979. The reversal of 14142978 is 87924141.

14142978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (14142971) 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, 9051 + ... + 10497.

It is an arithmetic number, because the mean of its divisors is an integer number (988260).

Almost surely, 2^14142978 is an apocalyptic number.

14142978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14142978 is an abundant number, since it is smaller than the sum of its proper divisors (17481342).

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

14142978 is a wasteful number, since it uses less digits than its factorization.

14142978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1633 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 14142978 is about 3760.7150915750. The cubic root of 14142978 is about 241.8319188941.

The spelling of 14142978 in words is "fourteen million, one hundred forty-two thousand, nine hundred seventy-eight".