13430456 has 32 divisors (see below), whose sum is σ = 27442800. Its totient is φ = 6124800.

The previous prime is 13430449. The next prime is 13430477. The reversal of 13430456 is 65403431.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 8531 + ... + 9981.

Almost surely, 2^13430456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13430456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13721400).

13430456 is an abundant number, since it is smaller than the sum of its proper divisors (14012344).

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

13430456 is a wasteful number, since it uses less digits than its factorization.

13430456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 13430456 is about 3664.7586550822. The cubic root of 13430456 is about 237.7005862212.

Adding to 13430456 its reverse (65403431), we get a palindrome (78833887).

The spelling of 13430456 in words is "thirteen million, four hundred thirty thousand, four hundred fifty-six".