194563228 has 6 divisors (see below), whose sum is σ = 340485656. Its totient is φ = 97281612.

The previous prime is 194563207. The next prime is 194563231. The reversal of 194563228 is 822365491.

194563228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24320400 + ... + 24320407.

Almost surely, 2^194563228 is an apocalyptic number.

It is an amenable number.

194563228 is a deficient number, since it is larger than the sum of its proper divisors (145922428).

194563228 is a wasteful number, since it uses less digits than its factorization.

194563228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48640811 (or 48640809 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 194563228 is about 13948.5923304110. The cubic root of 194563228 is about 579.4557200778.

It can be divided in two parts, 19456322 and 8, that multiplied together give a square (155650576 = 12476²).

The spelling of 194563228 in words is "one hundred ninety-four million, five hundred sixty-three thousand, two hundred twenty-eight".