196391430 has 48 divisors (see below), whose sum is σ = 511758000. Its totient is φ = 52254144.

The previous prime is 196391423. The next prime is 196391431. The reversal of 196391430 is 34193691.

196391430 is a `hidden beast` number, since 1 + 9 + 639 + 14 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196391431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42724 + ... + 47096.

It is an arithmetic number, because the mean of its divisors is an integer number (10661625).

Almost surely, 2^196391430 is an apocalyptic number.

196391430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196391430 is an abundant number, since it is smaller than the sum of its proper divisors (315366570).

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

196391430 is a wasteful number, since it uses less digits than its factorization.

196391430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 196391430 is about 14013.9726701603. The cubic root of 196391430 is about 581.2650055093.

The spelling of 196391430 in words is "one hundred ninety-six million, three hundred ninety-one thousand, four hundred thirty".