196551988 has 24 divisors (see below), whose sum is σ = 347203584. Its totient is φ = 97356000.

The previous prime is 196551923. The next prime is 196552001. The reversal of 196551988 is 889155691.

It is a super-5 number, since 5×196551988⁵ (a number of 43 digits) contains 55555 as substring.

It is a congruent number.

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, 280038 + ... + 280738.

It is an arithmetic number, because the mean of its divisors is an integer number (14466816).

Almost surely, 2^196551988 is an apocalyptic number.

It is an amenable number.

196551988 is a deficient number, since it is larger than the sum of its proper divisors (150651596).

196551988 is a wasteful number, since it uses less digits than its factorization.

196551988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1261 counting only the distinct ones).

The product of its digits is 777600, while the sum is 52.

The square root of 196551988 is about 14019.6999967902. The cubic root of 196551988 is about 581.4233649745.

The spelling of 196551988 in words is "one hundred ninety-six million, five hundred fifty-one thousand, nine hundred eighty-eight".