13433418 has 32 divisors (see below), whose sum is σ = 31425600. Its totient is φ = 4241808.

The previous prime is 13433401. The next prime is 13433419. The reversal of 13433418 is 81433431.

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

It is a junction number, because it is equal to n+sod(n) for n = 13433391 and 13433400.

It is not an unprimeable number, because it can be changed into a prime (13433419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5521 + ... + 7572.

It is an arithmetic number, because the mean of its divisors is an integer number (982050).

Almost surely, 2^13433418 is an apocalyptic number.

13433418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13433418 is an abundant number, since it is smaller than the sum of its proper divisors (17992182).

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

13433418 is a wasteful number, since it uses less digits than its factorization.

13433418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123 (or 13117 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13433418 is about 3665.1627521844. The cubic root of 13433418 is about 237.7180593778.

Adding to 13433418 its reverse (81433431), we get a palindrome (94866849).

It can be divided in two parts, 1343 and 3418, that added together give a square (4761 = 69²).

The spelling of 13433418 in words is "thirteen million, four hundred thirty-three thousand, four hundred eighteen".