196494720 has 128 divisors (see below), whose sum is σ = 648108000. Its totient is φ = 50577408.

The previous prime is 196494677. The next prime is 196494731. The reversal of 196494720 is 27494691.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×196494720² = 77220349975756800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53916 + ... + 57444.

Almost surely, 2^196494720 is an apocalyptic number.

196494720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196494720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324054000).

196494720 is an abundant number, since it is smaller than the sum of its proper divisors (451613280).

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

196494720 is a wasteful number, since it uses less digits than its factorization.

196494720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 196494720 is about 14017.6574362480. The cubic root of 196494720 is about 581.3668910479.

The spelling of 196494720 in words is "one hundred ninety-six million, four hundred ninety-four thousand, seven hundred twenty".