20194013 has 8 divisors (see below), whose sum is σ = 23109120. Its totient is φ = 17286480.

The previous prime is 20193991. The next prime is 20194037. The reversal of 20194013 is 31049102.

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

It is a cyclic number.

It is not a de Polignac number, because 20194013 - 2⁶ = 20193949 is a prime.

It is a super-2 number, since 2×20194013² = 815596322088338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20194073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6068 + ... + 8786.

It is an arithmetic number, because the mean of its divisors is an integer number (2888640).

Almost surely, 2^20194013 is an apocalyptic number.

It is an amenable number.

20194013 is a deficient number, since it is larger than the sum of its proper divisors (2915107).

20194013 is a wasteful number, since it uses less digits than its factorization.

20194013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20194013 is about 4493.7749164817. The cubic root of 20194013 is about 272.3166592121.

The spelling of 20194013 in words is "twenty million, one hundred ninety-four thousand, thirteen".