196664930 has 144 divisors (see below), whose sum is σ = 471598848. Its totient is φ = 58766400.

The previous prime is 196664911. The next prime is 196664947. The reversal of 196664930 is 39466691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1837937 + ... + 1838043.

It is an arithmetic number, because the mean of its divisors is an integer number (3274992).

Almost surely, 2^196664930 is an apocalyptic number.

196664930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196664930 is an abundant number, since it is smaller than the sum of its proper divisors (274933918).

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

196664930 is a wasteful number, since it uses less digits than its factorization.

196664930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 196664930 is about 14023.7273932432. The cubic root of 196664930 is about 581.5347087883.

The spelling of 196664930 in words is "one hundred ninety-six million, six hundred sixty-four thousand, nine hundred thirty".