20174485 has 12 divisors (see below), whose sum is σ = 25552908. Its totient is φ = 15288768.

The previous prime is 20174477. The next prime is 20174491. The reversal of 20174485 is 58447102.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 7279204 = 3591^2 + 2698^2 .

It is not a de Polignac number, because 20174485 - 2³ = 20174477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3784 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (2129409).

Almost surely, 2^20174485 is an apocalyptic number.

It is an amenable number.

20174485 is a deficient number, since it is larger than the sum of its proper divisors (5378423).

20174485 is a wasteful number, since it uses less digits than its factorization.

20174485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11220 (or 11201 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 20174485 is about 4491.6016074447. The cubic root of 20174485 is about 272.2288524154.

The spelling of 20174485 in words is "twenty million, one hundred seventy-four thousand, four hundred eighty-five".