20190874 has 8 divisors (see below), whose sum is σ = 33039648. Its totient is φ = 9177660.

The previous prime is 20190857. The next prime is 20190881. The reversal of 20190874 is 47809102.

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

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 3 ways as a sum of consecutive naturals, for example, 458862 + ... + 458905.

It is an arithmetic number, because the mean of its divisors is an integer number (4129956).

Almost surely, 2^20190874 is an apocalyptic number.

20190874 is a deficient number, since it is larger than the sum of its proper divisors (12848774).

20190874 is a wasteful number, since it uses less digits than its factorization.

20190874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917780.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 20190874 is about 4493.4256419796. The cubic root of 20190874 is about 272.3025486555.

Adding to 20190874 its reverse (47809102), we get a palindrome (67999976).

The spelling of 20190874 in words is "twenty million, one hundred ninety thousand, eight hundred seventy-four".