13420000 has 120 divisors (see below), whose sum is σ = 36607032. Its totient is φ = 4800000.

The previous prime is 13419949. The next prime is 13420003. The reversal of 13420000 is 2431.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420003) 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 19 ways as a sum of consecutive naturals, for example, 219970 + ... + 220030.

Almost surely, 2^13420000 is an apocalyptic number.

13420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18303516).

13420000 is an abundant number, since it is smaller than the sum of its proper divisors (23187032).

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

13420000 is an equidigital number, since it uses as much as digits as its factorization.

13420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 13420000 is about 3663.3318168028. The cubic root of 13420000 is about 237.6388846033.

Adding to 13420000 its reverse (2431), we get a palindrome (13422431).

Subtracting from 13420000 its reverse (2431), we obtain a square (13417569 = 3663²).

The spelling of 13420000 in words is "thirteen million, four hundred twenty thousand".