14378740 has 12 divisors (see below), whose sum is σ = 30195396. Its totient is φ = 5751488.

The previous prime is 14378729. The next prime is 14378747. The reversal of 14378740 is 4787341.

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 9960336 = 2102^2 + 3156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14378696 and 14378705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14378747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359449 + ... + 359488.

It is an arithmetic number, because the mean of its divisors is an integer number (2516283).

Almost surely, 2^14378740 is an apocalyptic number.

14378740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14378740 is an abundant number, since it is smaller than the sum of its proper divisors (15816656).

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

14378740 is a wasteful number, since it uses less digits than its factorization.

14378740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718946 (or 718944 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 14378740 is about 3791.9309065435. The cubic root of 14378740 is about 243.1682915796.

The spelling of 14378740 in words is "fourteen million, three hundred seventy-eight thousand, seven hundred forty".