20613410 has 8 divisors (see below), whose sum is σ = 37104156. Its totient is φ = 8245360.

The previous prime is 20613409. The next prime is 20613413. The reversal of 20613410 is 1431602.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 1682209 = 4351^2 + 1297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20613413) 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, 1030661 + ... + 1030680.

Almost surely, 2^20613410 is an apocalyptic number.

20613410 is a deficient number, since it is larger than the sum of its proper divisors (16490746).

20613410 is a wasteful number, since it uses less digits than its factorization.

20613410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061348.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20613410 is about 4540.1993348310. The cubic root of 20613410 is about 274.1889491821.

The spelling of 20613410 in words is "twenty million, six hundred thirteen thousand, four hundred ten".