196281988 has 24 divisors (see below), whose sum is σ = 393520064. Its totient is φ = 83916000.

The previous prime is 196281979. The next prime is 196281991. The reversal of 196281988 is 889182691.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3463 + ... + 20113.

Almost surely, 2^196281988 is an apocalyptic number.

It is an amenable number.

196281988 is an abundant number, since it is smaller than the sum of its proper divisors (197238076).

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

196281988 is a wasteful number, since it uses less digits than its factorization.

196281988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17083 (or 17081 counting only the distinct ones).

The product of its digits is 497664, while the sum is 52.

The square root of 196281988 is about 14010.0673802805. The cubic root of 196281988 is about 581.1570126348.

The spelling of 196281988 in words is "one hundred ninety-six million, two hundred eighty-one thousand, nine hundred eighty-eight".