195913628 has 24 divisors (see below), whose sum is σ = 348780432. Its totient is φ = 96269184.

The previous prime is 195913607. The next prime is 195913643. The reversal of 195913628 is 826319591.

It is a happy number.

It is a super-2 number, since 2×195913628² = 76764299272244768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228176 + ... + 229032.

It is an arithmetic number, because the mean of its divisors is an integer number (14532518).

Almost surely, 2^195913628 is an apocalyptic number.

It is an amenable number.

195913628 is a deficient number, since it is larger than the sum of its proper divisors (152866804).

195913628 is a wasteful number, since it uses less digits than its factorization.

195913628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781 (or 1779 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 195913628 is about 13996.9149458014. The cubic root of 195913628 is about 580.7932348943.

The spelling of 195913628 in words is "one hundred ninety-five million, nine hundred thirteen thousand, six hundred twenty-eight".