20219674 has 8 divisors (see below), whose sum is σ = 30349620. Its totient is φ = 10103136.

The previous prime is 20219671. The next prime is 20219677. The reversal of 20219674 is 47691202.

It is an interprime number because it is at equal distance from previous prime (20219671) and next prime (20219677).

It can be written as a sum of positive squares in 2 ways, for example, as 17682025 + 2537649 = 4205^2 + 1593^2 .

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 (20219671) 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, 2382 + ... + 6790.

Almost surely, 2^20219674 is an apocalyptic number.

20219674 is a deficient number, since it is larger than the sum of its proper divisors (10129946).

20219674 is a wasteful number, since it uses less digits than its factorization.

20219674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20219674 is about 4496.6291819540. The cubic root of 20219674 is about 272.4319567506.

The spelling of 20219674 in words is "twenty million, two hundred nineteen thousand, six hundred seventy-four".