20283413 has 4 divisors (see below), whose sum is σ = 20294988. Its totient is φ = 20271840.

The previous prime is 20283409. The next prime is 20283421. The reversal of 20283413 is 31438202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3694084 + 16589329 = 1922^2 + 4073^2 .

It is a cyclic number.

It is not a de Polignac number, because 20283413 - 2² = 20283409 is a prime.

It is a super-2 number, since 2×20283413² = 822833685857138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20283463) 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, 2558 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (5073747).

Almost surely, 2^20283413 is an apocalyptic number.

It is an amenable number.

20283413 is a deficient number, since it is larger than the sum of its proper divisors (11575).

20283413 is an equidigital number, since it uses as much as digits as its factorization.

20283413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11574.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20283413 is about 4503.7110253656. The cubic root of 20283413 is about 272.7179212383.

The spelling of 20283413 in words is "twenty million, two hundred eighty-three thousand, four hundred thirteen".