14398820 has 12 divisors (see below), whose sum is σ = 30237564. Its totient is φ = 5759520.

The previous prime is 14398807. The next prime is 14398823. The reversal of 14398820 is 2889341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10588516 + 3810304 = 3254^2 + 1952^2 .

It is not an unprimeable number, because it can be changed into a prime (14398823) 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, 359951 + ... + 359990.

It is an arithmetic number, because the mean of its divisors is an integer number (2519797).

Almost surely, 2^14398820 is an apocalyptic number.

14398820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14398820 is an abundant number, since it is smaller than the sum of its proper divisors (15838744).

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

14398820 is a wasteful number, since it uses less digits than its factorization.

14398820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719950 (or 719948 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 14398820 is about 3794.5777103651. The cubic root of 14398820 is about 243.2814342726.

The spelling of 14398820 in words is "fourteen million, three hundred ninety-eight thousand, eight hundred twenty".