13404069 has 16 divisors (see below), whose sum is σ = 22695040. Its totient is φ = 7659360.

The previous prime is 13404067. The next prime is 13404073. The reversal of 13404069 is 96040431.

13404069 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 not a de Polignac number, because 13404069 - 2¹ = 13404067 is a prime.

It is a super-2 number, since 2×13404069² = 359338131513522, which contains 22 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35272 + ... + 35649.

It is an arithmetic number, because the mean of its divisors is an integer number (1418440).

Almost surely, 2^13404069 is an apocalyptic number.

It is an amenable number.

13404069 is a deficient number, since it is larger than the sum of its proper divisors (9290971).

13404069 is an equidigital number, since it uses as much as digits as its factorization.

13404069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70937 (or 70931 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13404069 is about 3661.1567844057. The cubic root of 13404069 is about 237.5448129659.

The spelling of 13404069 in words is "thirteen million, four hundred four thousand, sixty-nine".