194982840 has 192 divisors, whose sum is σ = 694643040. Its totient is φ = 47139840.

The previous prime is 194982833. The next prime is 194982869. The reversal of 194982840 is 48289491.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285139 + ... + 285821.

Almost surely, 2^194982840 is an apocalyptic number.

194982840 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 194982840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347321520).

194982840 is an abundant number, since it is smaller than the sum of its proper divisors (499660200).

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

194982840 is a wasteful number, since it uses less digits than its factorization.

194982840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 194982840 is about 13963.6256036890. The cubic root of 194982840 is about 579.8719891886.

The spelling of 194982840 in words is "one hundred ninety-four million, nine hundred eighty-two thousand, eight hundred forty".