20195674 has 8 divisors (see below), whose sum is σ = 30469140. Its totient is φ = 10039296.

The previous prime is 20195671. The next prime is 20195683. The reversal of 20195674 is 47659102.

20195674 = 252² + 253² + ... + 424².

It can be written as a sum of positive squares in 2 ways, for example, as 18861649 + 1334025 = 4343^2 + 1155^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20195671) by changing a digit.

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, 28839 + ... + 29530.

Almost surely, 2^20195674 is an apocalyptic number.

20195674 is a deficient number, since it is larger than the sum of its proper divisors (10273466).

20195674 is a wasteful number, since it uses less digits than its factorization.

20195674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58544.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 20195674 is about 4493.9597238961. The cubic root of 20195674 is about 272.3241252132.

The spelling of 20195674 in words is "twenty million, one hundred ninety-five thousand, six hundred seventy-four".