13004398 has 32 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 5484960.

The previous prime is 13004393. The next prime is 13004449. The reversal of 13004398 is 89340031.

It is a super-2 number, since 2×13004398² = 338228734684808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004393) 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, 21861 + ... + 22447.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^13004398 is an apocalyptic number.

13004398 is a deficient number, since it is larger than the sum of its proper divisors (9857042).

13004398 is a wasteful number, since it uses less digits than its factorization.

13004398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13004398 is about 3606.1611167556. The cubic root of 13004398 is about 235.1599816029.

The spelling of 13004398 in words is "thirteen million, four thousand, three hundred ninety-eight".