20173074 has 16 divisors (see below), whose sum is σ = 40423008. Its totient is φ = 6711552.

The previous prime is 20173051. The next prime is 20173081. The reversal of 20173074 is 47037102.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549 + ... + 6375.

It is an arithmetic number, because the mean of its divisors is an integer number (2526438).

Almost surely, 2^20173074 is an apocalyptic number.

20173074 is an abundant number, since it is smaller than the sum of its proper divisors (20249934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20173074 is a wasteful number, since it uses less digits than its factorization.

20173074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20173074 is about 4491.4445337775. Note that the first 3 decimals coincide. The cubic root of 20173074 is about 272.2225057211. Note that the first 3 decimals are identical.

The spelling of 20173074 in words is "twenty million, one hundred seventy-three thousand, seventy-four".