13420810 has 16 divisors (see below), whose sum is σ = 26015976. Its totient is φ = 4955328.

The previous prime is 13420807. The next prime is 13420873. The reversal of 13420810 is 1802431.

It can be written as a sum of positive squares in 4 ways, for example, as 12173121 + 1247689 = 3489^2 + 1117^2 .

It is a super-2 number, since 2×13420810² = 360236282112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51489 + ... + 51748.

Almost surely, 2^13420810 is an apocalyptic number.

13420810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13420810 is a deficient number, since it is larger than the sum of its proper divisors (12595166).

13420810 is a wasteful number, since it uses less digits than its factorization.

13420810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103257.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13420810 is about 3663.4423702305. The cubic root of 13420810 is about 237.6436656173.

The spelling of 13420810 in words is "thirteen million, four hundred twenty thousand, eight hundred ten".