20094245 has 8 divisors (see below), whose sum is σ = 24944760. Its totient is φ = 15520960.

The previous prime is 20094241. The next prime is 20094247. The reversal of 20094245 is 54249002.

It can be written as a sum of positive squares in 4 ways, for example, as 6713281 + 13380964 = 2591^2 + 3658^2 .

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

It is not a de Polignac number, because 20094245 - 2² = 20094241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20094241) 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, 69146 + ... + 69435.

It is an arithmetic number, because the mean of its divisors is an integer number (3118095).

Almost surely, 2^20094245 is an apocalyptic number.

It is an amenable number.

20094245 is a deficient number, since it is larger than the sum of its proper divisors (4850515).

20094245 is a wasteful number, since it uses less digits than its factorization.

20094245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138615.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20094245 is about 4482.6604823475. The cubic root of 20094245 is about 271.8674608382.

The spelling of 20094245 in words is "twenty million, ninety-four thousand, two hundred forty-five".