20120574 has 8 divisors (see below), whose sum is σ = 40241160. Its totient is φ = 6706856.

The previous prime is 20120543. The next prime is 20120623. The reversal of 20120574 is 47502102.

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

20120574 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676709 + ... + 1676720.

It is an arithmetic number, because the mean of its divisors is an integer number (5030145).

Almost surely, 2^20120574 is an apocalyptic number.

20120574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20120574 is a wasteful number, since it uses less digits than its factorization.

20120574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353434.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20120574 is about 4485.5962814324. The cubic root of 20120574 is about 271.9861494533.

Adding to 20120574 its reverse (47502102), we get a palindrome (67622676).

The spelling of 20120574 in words is "twenty million, one hundred twenty thousand, five hundred seventy-four".