195428916 has 24 divisors (see below), whose sum is σ = 506667840. Its totient is φ = 65142936.

The previous prime is 195428899. The next prime is 195428917. The reversal of 195428916 is 619824591.

195428916 is a `hidden beast` number, since 19 + 542 + 8 + 91 + 6 = 666.

It is a super-2 number, since 2×195428916² = 76384922417870112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195428917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904656 + ... + 904871.

It is an arithmetic number, because the mean of its divisors is an integer number (21111160).

Almost surely, 2^195428916 is an apocalyptic number.

It is an amenable number.

195428916 is an abundant number, since it is smaller than the sum of its proper divisors (311238924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195428916 is a wasteful number, since it uses less digits than its factorization.

195428916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809540 (or 1809532 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 195428916 is about 13979.5892643525. The cubic root of 195428916 is about 580.3138570830.

The spelling of 195428916 in words is "one hundred ninety-five million, four hundred twenty-eight thousand, nine hundred sixteen".