194880840 has 384 divisors, whose sum is σ = 780088320. Its totient is φ = 38438400.

The previous prime is 194880827. The next prime is 194880883. The reversal of 194880840 is 48088491.

194880840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 194880792 and 194880801.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1487575 + ... + 1487705.

It is an arithmetic number, because the mean of its divisors is an integer number (2031480).

Almost surely, 2^194880840 is an apocalyptic number.

194880840 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 194880840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390044160).

194880840 is an abundant number, since it is smaller than the sum of its proper divisors (585207480).

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

194880840 is a wasteful number, since it uses less digits than its factorization.

194880840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 194880840 is about 13959.9727793431. The cubic root of 194880840 is about 579.7708567682.

The spelling of 194880840 in words is "one hundred ninety-four million, eight hundred eighty thousand, eight hundred forty".