13421430 has 64 divisors (see below), whose sum is σ = 39052800. Its totient is φ = 3252960.

The previous prime is 13421411. The next prime is 13421437. The reversal of 13421430 is 3412431.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (610200).

Almost surely, 2^13421430 is an apocalyptic number.

13421430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13421430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19526400).

13421430 is an abundant number, since it is smaller than the sum of its proper divisors (25631370).

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

13421430 is a wasteful number, since it uses less digits than its factorization.

13421430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4540 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13421430 is about 3663.5269891185. The cubic root of 13421430 is about 237.6473250289.

Adding to 13421430 its reverse (3412431), we get a palindrome (16833861).

It can be divided in two parts, 1342 and 1430, that added together give a palindrome (2772).

The spelling of 13421430 in words is "thirteen million, four hundred twenty-one thousand, four hundred thirty".