20488485 has 16 divisors (see below), whose sum is σ = 34710336. Its totient is φ = 10284288.

The previous prime is 20488463. The next prime is 20488499. The reversal of 20488485 is 58488402.

It is not a de Polignac number, because 20488485 - 2⁶ = 20488421 is a prime.

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, 39919 + ... + 40428.

It is an arithmetic number, because the mean of its divisors is an integer number (2169396).

Almost surely, 2^20488485 is an apocalyptic number.

It is an amenable number.

20488485 is a deficient number, since it is larger than the sum of its proper divisors (14221851).

20488485 is a wasteful number, since it uses less digits than its factorization.

20488485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80372.

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 20488485 is about 4526.4207714264. The cubic root of 20488485 is about 273.6339304855.

The spelling of 20488485 in words is "twenty million, four hundred eighty-eight thousand, four hundred eighty-five".