14478740 has 24 divisors (see below), whose sum is σ = 31148712. Its totient is φ = 5649920.

The previous prime is 14478727. The next prime is 14478749. The reversal of 14478740 is 4787441.

It can be written as a sum of positive squares in 4 ways, for example, as 446224 + 14032516 = 668^2 + 3746^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 14478740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14478749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8009 + ... + 9648.

It is an arithmetic number, because the mean of its divisors is an integer number (1297863).

Almost surely, 2^14478740 is an apocalyptic number.

14478740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14478740 is an abundant number, since it is smaller than the sum of its proper divisors (16669972).

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

14478740 is a wasteful number, since it uses less digits than its factorization.

14478740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17707 (or 17705 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 14478740 is about 3805.0939541620. The cubic root of 14478740 is about 243.7307116010.

The spelling of 14478740 in words is "fourteen million, four hundred seventy-eight thousand, seven hundred forty".