196261428 has 24 divisors (see below), whose sum is σ = 499574880. Its totient is φ = 59473120.

The previous prime is 196261427. The next prime is 196261441. The reversal of 196261428 is 824162691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196261423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743283 + ... + 743546.

It is an arithmetic number, because the mean of its divisors is an integer number (20815620).

Almost surely, 2^196261428 is an apocalyptic number.

It is an amenable number.

196261428 is an abundant number, since it is smaller than the sum of its proper divisors (303313452).

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

196261428 is a wasteful number, since it uses less digits than its factorization.

196261428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486847 (or 1486845 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 196261428 is about 14009.3336029948. Note that the first 3 decimals coincide. The cubic root of 196261428 is about 581.1367203917.

The spelling of 196261428 in words is "one hundred ninety-six million, two hundred sixty-one thousand, four hundred twenty-eight".