20488345 has 8 divisors (see below), whose sum is σ = 24617664. Its totient is φ = 16369584.

The previous prime is 20488337. The next prime is 20488367. The reversal of 20488345 is 54388402.

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

It is a cyclic number.

It is not a de Polignac number, because 20488345 - 2³ = 20488337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20488345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572 + ... + 6898.

It is an arithmetic number, because the mean of its divisors is an integer number (3077208).

Almost surely, 2^20488345 is an apocalyptic number.

It is an amenable number.

20488345 is a deficient number, since it is larger than the sum of its proper divisors (4129319).

20488345 is an equidigital number, since it uses as much as digits as its factorization.

20488345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 20488345 is about 4526.4053066423. The cubic root of 20488345 is about 273.6333072275.

The spelling of 20488345 in words is "twenty million, four hundred eighty-eight thousand, three hundred forty-five".