16413813 has 32 divisors (see below), whose sum is σ = 26503680. Its totient is φ = 9979200.

The previous prime is 16413811. The next prime is 16413827. The reversal of 16413813 is 31831461.

16413813 is a `hidden beast` number, since 1 + 641 + 3 + 8 + 13 = 666.

It is not a de Polignac number, because 16413813 - 2¹ = 16413811 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16413811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35220 + ... + 35682.

It is an arithmetic number, because the mean of its divisors is an integer number (828240).

Almost surely, 2^16413813 is an apocalyptic number.

16413813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16413813 is a deficient number, since it is larger than the sum of its proper divisors (10089867).

16413813 is a wasteful number, since it uses less digits than its factorization.

16413813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 580 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16413813 is about 4051.3964259253. The cubic root of 16413813 is about 254.1381283136.

The spelling of 16413813 in words is "sixteen million, four hundred thirteen thousand, eight hundred thirteen".