13468820 has 12 divisors (see below), whose sum is σ = 28284564. Its totient is φ = 5387520.

The previous prime is 13468813. The next prime is 13468843. The reversal of 13468820 is 2886431.

It can be written as a sum of positive squares in 2 ways, for example, as 9412624 + 4056196 = 3068^2 + 2014^2 .

It is a super-2 number, since 2×13468820² = 362818224384800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336701 + ... + 336740.

It is an arithmetic number, because the mean of its divisors is an integer number (2357047).

Almost surely, 2^13468820 is an apocalyptic number.

13468820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13468820 is an abundant number, since it is smaller than the sum of its proper divisors (14815744).

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

13468820 is a wasteful number, since it uses less digits than its factorization.

13468820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673450 (or 673448 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 13468820 is about 3669.9891008013. The cubic root of 13468820 is about 237.9267010584.

The spelling of 13468820 in words is "thirteen million, four hundred sixty-eight thousand, eight hundred twenty".