13333404 has 24 divisors (see below), whose sum is σ = 35555968. Its totient is φ = 3809520.

The previous prime is 13333403. The next prime is 13333409. The reversal of 13333404 is 40433331.

It is a super-4 number, since 4×13333404⁴ (a number of 30 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79282 + ... + 79449.

Almost surely, 2^13333404 is an apocalyptic number.

13333404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13333404 is an abundant number, since it is smaller than the sum of its proper divisors (22222564).

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

13333404 is a wasteful number, since it uses less digits than its factorization.

13333404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158745 (or 158743 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 13333404 is about 3651.4933931201. The cubic root of 13333404 is about 237.1266392216.

Adding to 13333404 its reverse (40433331), we get a palindrome (53766735).

The spelling of 13333404 in words is "thirteen million, three hundred thirty-three thousand, four hundred four".