20652194 has 4 divisors (see below), whose sum is σ = 30978294. Its totient is φ = 10326096.

The previous prime is 20652187. The next prime is 20652239. The reversal of 20652194 is 49125602.

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., 13432225 + 7219969 = 3665^2 + 2687^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5163047 + ... + 5163050.

Almost surely, 2^20652194 is an apocalyptic number.

20652194 is a deficient number, since it is larger than the sum of its proper divisors (10326100).

20652194 is a wasteful number, since it uses less digits than its factorization.

20652194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10326099.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20652194 is about 4544.4685057771. The cubic root of 20652194 is about 274.3608030353.

Adding to 20652194 its reverse (49125602), we get a palindrome (69777796).

The spelling of 20652194 in words is "twenty million, six hundred fifty-two thousand, one hundred ninety-four".