196185738 has 64 divisors (see below), whose sum is σ = 467389440. Its totient is φ = 53731200.

The previous prime is 196185727. The next prime is 196185739. The reversal of 196185738 is 837581691.

196185738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (196185739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100633 + ... + 102563.

It is an arithmetic number, because the mean of its divisors is an integer number (7302960).

Almost surely, 2^196185738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196185738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233694720).

196185738 is an abundant number, since it is smaller than the sum of its proper divisors (271203702).

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

196185738 is a wasteful number, since it uses less digits than its factorization.

196185738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043.

The product of its digits is 362880, while the sum is 48.

The square root of 196185738 is about 14006.6319291970. The cubic root of 196185738 is about 581.0620039033.

The spelling of 196185738 in words is "one hundred ninety-six million, one hundred eighty-five thousand, seven hundred thirty-eight".