194000520 has 256 divisors, whose sum is σ = 702535680. Its totient is φ = 41932800.

The previous prime is 194000519. The next prime is 194000531. The reversal of 194000520 is 25000491.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1480855 + ... + 1480985.

It is an arithmetic number, because the mean of its divisors is an integer number (2744280).

Almost surely, 2^194000520 is an apocalyptic number.

194000520 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 194000520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351267840).

194000520 is an abundant number, since it is smaller than the sum of its proper divisors (508535160).

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

194000520 is a wasteful number, since it uses less digits than its factorization.

194000520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 194000520 is about 13928.4069440837. The cubic root of 194000520 is about 578.8965544325.

The spelling of 194000520 in words is "one hundred ninety-four million, five hundred twenty", and thus it is an aban number.