20019374 has 8 divisors (see below), whose sum is σ = 30440640. Its totient is φ = 9872496.

The previous prime is 20019347. The next prime is 20019403. The reversal of 20019374 is 47391002.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68414 + ... + 68705.

It is an arithmetic number, because the mean of its divisors is an integer number (3805080).

Almost surely, 2^20019374 is an apocalyptic number.

20019374 is a deficient number, since it is larger than the sum of its proper divisors (10421266).

20019374 is a wasteful number, since it uses less digits than its factorization.

20019374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137194.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20019374 is about 4474.3015097331. The cubic root of 20019374 is about 271.5293819178.

The spelling of 20019374 in words is "twenty million, nineteen thousand, three hundred seventy-four".