14421378 has 32 divisors (see below), whose sum is σ = 29635200. Its totient is φ = 4677120.

The previous prime is 14421377. The next prime is 14421401. The reversal of 14421378 is 87312441.

It is a super-2 number, since 2×14421378² = 415952286837768, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14421373) 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, 41148 + ... + 41496.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^14421378 is an apocalyptic number.

14421378 is an abundant number, since it is smaller than the sum of its proper divisors (15213822).

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

14421378 is a wasteful number, since it uses less digits than its factorization.

14421378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its digits is 5376, while the sum is 30.

The square root of 14421378 is about 3797.5489463600. The cubic root of 14421378 is about 243.4084141033.

The spelling of 14421378 in words is "fourteen million, four hundred twenty-one thousand, three hundred seventy-eight".