13056390 has 72 divisors (see below), whose sum is σ = 35427600. Its totient is φ = 3464208.

The previous prime is 13056367. The next prime is 13056397. The reversal of 13056390 is 9365031.

13056390 is a `hidden beast` number, since 13 + 0 + 563 + 90 = 666.

13056390 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056397) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65511 + ... + 65709.

It is an arithmetic number, because the mean of its divisors is an integer number (492050).

Almost surely, 2^13056390 is an apocalyptic number.

13056390 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 13056390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17713800).

13056390 is an abundant number, since it is smaller than the sum of its proper divisors (22371210).

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

13056390 is an frugal number, since it uses more digits than its factorization.

13056390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 13056390 is about 3613.3626997577. The cubic root of 13056390 is about 235.4729572583.

The spelling of 13056390 in words is "thirteen million, fifty-six thousand, three hundred ninety".