13898970 has 48 divisors (see below), whose sum is σ = 36321480. Its totient is φ = 3687552.

The previous prime is 13898957. The next prime is 13898971. The reversal of 13898970 is 7989831.

It can be written as a sum of positive squares in 4 ways, for example, as 10517049 + 3381921 = 3243^2 + 1839^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13898971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34812 + ... + 35208.

Almost surely, 2^13898970 is an apocalyptic number.

13898970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13898970 is an abundant number, since it is smaller than the sum of its proper divisors (22422510).

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

13898970 is a wasteful number, since it uses less digits than its factorization.

13898970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 13898970 is about 3728.1322401438. The cubic root of 13898970 is about 240.4330722318.

The spelling of 13898970 in words is "thirteen million, eight hundred ninety-eight thousand, nine hundred seventy".