20127470 has 32 divisors (see below), whose sum is σ = 40127616. Its totient is φ = 7207200.

The previous prime is 20127467. The next prime is 20127493. The reversal of 20127470 is 7472102.

20127470 = 264² + 265² + ... + 428².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6005 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (1253988).

Almost surely, 2^20127470 is an apocalyptic number.

20127470 is a deficient number, since it is larger than the sum of its proper divisors (20000146).

20127470 is a wasteful number, since it uses less digits than its factorization.

20127470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 20127470 is about 4486.3648982222. The cubic root of 20127470 is about 272.0172188494.

Adding to 20127470 its reverse (7472102), we get a palindrome (27599572).

The spelling of 20127470 in words is "twenty million, one hundred twenty-seven thousand, four hundred seventy".