20001174 has 16 divisors (see below), whose sum is σ = 40485312. Its totient is φ = 6586568.

The previous prime is 20001161. The next prime is 20001181. The reversal of 20001174 is 47110002.

It is a super-2 number, since 2×20001174² = 800093922756552, which contains 22 as substring.

It is a congruent 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, 19584 + ... + 20579.

It is an arithmetic number, because the mean of its divisors is an integer number (2530332).

Almost surely, 2^20001174 is an apocalyptic number.

20001174 is an abundant number, since it is smaller than the sum of its proper divisors (20484138).

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

20001174 is a wasteful number, since it uses less digits than its factorization.

20001174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40251.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 20001174 is about 4472.2672102637. The cubic root of 20001174 is about 271.4470727660.

Adding to 20001174 its reverse (47110002), we get a palindrome (67111176).

The spelling of 20001174 in words is "twenty million, one thousand, one hundred seventy-four".