13408250436 has 135 divisors (see below), whose sum is σ = 40818977199. Its totient is φ = 3826760112.

The previous prime is 13408250347. The next prime is 13408250437. The reversal of 13408250436 is 63405280431.

The square root of 13408250436 is 115794.

It is a perfect power (a square), and thus also a powerful number.

13408250436 is a `hidden beast` number, since 1 + 3 + 40 + 82 + 504 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13408250436.

It is not an unprimeable number, because it can be changed into a prime (13408250437) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 14589585 + ... + 14590503.

Almost surely, 2^13408250436 is an apocalyptic number.

13408250436 is the 115794-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13408250436

13408250436 is an abundant number, since it is smaller than the sum of its proper divisors (27410726763).

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

13408250436 is an frugal number, since it uses more digits than its factorization.

13408250436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Multiplying 13408250436 by its sum of digits (36), we get a square (482697015696 = 694764²).

13408250436 divided by its sum of digits (36) gives a square (372451401 = 19299²).

The spelling of 13408250436 in words is "thirteen billion, four hundred eight million, two hundred fifty thousand, four hundred thirty-six".