20914394 has 8 divisors (see below), whose sum is σ = 32453460. Its totient is φ = 10096576.

The previous prime is 20914393. The next prime is 20914409. The reversal of 20914394 is 49341902.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20295025 + 619369 = 4505^2 + 787^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20914394.

It is not an unprimeable number, because it can be changed into a prime (20914391) by changing a digit.

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, 180239 + ... + 180354.

Almost surely, 2^20914394 is an apocalyptic number.

20914394 is a deficient number, since it is larger than the sum of its proper divisors (11539066).

20914394 is a wasteful number, since it uses less digits than its factorization.

20914394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360624.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20914394 is about 4573.2257761891. The cubic root of 20914394 is about 275.5170174479.

The spelling of 20914394 in words is "twenty million, nine hundred fourteen thousand, three hundred ninety-four".