13898530 has 8 divisors (see below), whose sum is σ = 25017372. Its totient is φ = 5559408.

The previous prime is 13898501. The next prime is 13898539. The reversal of 13898530 is 3589831.

It can be written as a sum of positive squares in 2 ways, for example, as 13227769 + 670761 = 3637^2 + 819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13898530.

It is not an unprimeable number, because it can be changed into a prime (13898539) 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, 694917 + ... + 694936.

Almost surely, 2^13898530 is an apocalyptic number.

13898530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13898530 is a deficient number, since it is larger than the sum of its proper divisors (11118842).

13898530 is a wasteful number, since it uses less digits than its factorization.

13898530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389860.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 13898530 is about 3728.0732288945. The cubic root of 13898530 is about 240.4305350733.

The spelling of 13898530 in words is "thirteen million, eight hundred ninety-eight thousand, five hundred thirty".