20297194 has 4 divisors (see below), whose sum is σ = 30445794. Its totient is φ = 10148596.

The previous prime is 20297191. The next prime is 20297209. The reversal of 20297194 is 49179202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20133169 + 164025 = 4487^2 + 405^2 .

It is not an unprimeable number, because it can be changed into a prime (20297191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5074297 + ... + 5074300.

Almost surely, 2^20297194 is an apocalyptic number.

20297194 is a deficient number, since it is larger than the sum of its proper divisors (10148600).

20297194 is a wasteful number, since it uses less digits than its factorization.

20297194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148599.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 20297194 is about 4505.2407260878. The cubic root of 20297194 is about 272.7796707875.

The spelling of 20297194 in words is "twenty million, two hundred ninety-seven thousand, one hundred ninety-four".