20460605 has 32 divisors (see below), whose sum is σ = 28823040. Its totient is φ = 13777920.

The previous prime is 20460581. The next prime is 20460607. The reversal of 20460605 is 50606402.

It is not a de Polignac number, because 20460605 - 2¹² = 20456509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73727 + ... + 74003.

It is an arithmetic number, because the mean of its divisors is an integer number (900720).

Almost surely, 2^20460605 is an apocalyptic number.

It is an amenable number.

20460605 is a deficient number, since it is larger than the sum of its proper divisors (8362435).

20460605 is a wasteful number, since it uses less digits than its factorization.

20460605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20460605 is about 4523.3400270154. The cubic root of 20460605 is about 273.5097570456.

The spelling of 20460605 in words is "twenty million, four hundred sixty thousand, six hundred five".