13400413 has 4 divisors (see below), whose sum is σ = 14431228. Its totient is φ = 12369600.

The previous prime is 13400389. The next prime is 13400417. The reversal of 13400413 is 31400431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31400431 = 1151 ⋅27281.

It can be written as a sum of positive squares in 2 ways, for example, as 8982009 + 4418404 = 2997^2 + 2102^2 .

It is a cyclic number.

It is not a de Polignac number, because 13400413 - 2²¹ = 11303261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515388 + ... + 515413.

It is an arithmetic number, because the mean of its divisors is an integer number (3607807).

Almost surely, 2^13400413 is an apocalyptic number.

13400413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13400413 is a deficient number, since it is larger than the sum of its proper divisors (1030815).

13400413 is a wasteful number, since it uses less digits than its factorization.

13400413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030814.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13400413 is about 3660.6574546111. The cubic root of 13400413 is about 237.5232139821.

Adding to 13400413 its reverse (31400431), we get a palindrome (44800844).

The spelling of 13400413 in words is "thirteen million, four hundred thousand, four hundred thirteen".