196451892 has 144 divisors (see below), whose sum is σ = 634105472. Its totient is φ = 51788160.

The previous prime is 196451891. The next prime is 196451909. The reversal of 196451892 is 298154691.

196451892 is a `hidden beast` number, since 196 + 451 + 8 + 9 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196451891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87342 + ... + 89562.

Almost surely, 2^196451892 is an apocalyptic number.

196451892 is a gapful number since it is divisible by the number (12) 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 196451892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317052736).

196451892 is an abundant number, since it is smaller than the sum of its proper divisors (437653580).

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

196451892 is a wasteful number, since it uses less digits than its factorization.

196451892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 2246 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 196451892 is about 14016.1297083039. The cubic root of 196451892 is about 581.3246497256.

The spelling of 196451892 in words is "one hundred ninety-six million, four hundred fifty-one thousand, eight hundred ninety-two".