13019418 has 24 divisors (see below), whose sum is σ = 28275156. Its totient is φ = 4329600.

The previous prime is 13019417. The next prime is 13019431. The reversal of 13019418 is 81491031.

It can be written as a sum of positive squares in 2 ways, for example, as 11923209 + 1096209 = 3453^2 + 1047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13019391 and 13019400.

It is not an unprimeable number, because it can be changed into a prime (13019417) 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 11 ways as a sum of consecutive naturals, for example, 14338 + ... + 15218.

Almost surely, 2^13019418 is an apocalyptic number.

13019418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13019418 is an abundant number, since it is smaller than the sum of its proper divisors (15255738).

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

13019418 is a wasteful number, since it uses less digits than its factorization.

13019418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 13019418 is about 3608.2430627661. The cubic root of 13019418 is about 235.2504828816.

The spelling of 13019418 in words is "thirteen million, nineteen thousand, four hundred eighteen".