13898973252 has 24 divisors (see below), whose sum is σ = 34137829600. Its totient is φ = 4389149376.

The previous prime is 13898973229. The next prime is 13898973343. The reversal of 13898973252 is 25237989831.

It is a happy number.

It is a super-2 number, since 2×13898973252² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 13898973192 and 13898973201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30479977 + ... + 30480432.

Almost surely, 2^13898973252 is an apocalyptic number.

13898973252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13898973252 is an abundant number, since it is smaller than the sum of its proper divisors (20238856348).

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

13898973252 is a wasteful number, since it uses less digits than its factorization.

13898973252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60960435 (or 60960433 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 13898973252 in words is "thirteen billion, eight hundred ninety-eight million, nine hundred seventy-three thousand, two hundred fifty-two".