196821474 has 16 divisors (see below), whose sum is σ = 396649440. Its totient is φ = 65106080.

The previous prime is 196821467. The next prime is 196821481. The reversal of 196821474 is 474128691.

It is an interprime number because it is at equal distance from previous prime (196821467) and next prime (196821481).

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, 124419 + ... + 125990.

It is an arithmetic number, because the mean of its divisors is an integer number (24790590).

Almost surely, 2^196821474 is an apocalyptic number.

196821474 is an abundant number, since it is smaller than the sum of its proper divisors (199827966).

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

196821474 is a wasteful number, since it uses less digits than its factorization.

196821474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250545.

The product of its digits is 96768, while the sum is 42.

The square root of 196821474 is about 14029.3076807090. The cubic root of 196821474 is about 581.6889671429.

The spelling of 196821474 in words is "one hundred ninety-six million, eight hundred twenty-one thousand, four hundred seventy-four".