194226720 has 192 divisors, whose sum is σ = 649845504. Its totient is φ = 48660480.

The previous prime is 194226719. The next prime is 194226733. The reversal of 194226720 is 27622491.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805800 + ... + 806040.

It is an arithmetic number, because the mean of its divisors is an integer number (3384612).

Almost surely, 2^194226720 is an apocalyptic number.

194226720 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 194226720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324922752).

194226720 is an abundant number, since it is smaller than the sum of its proper divisors (455618784).

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

194226720 is a wasteful number, since it uses less digits than its factorization.

194226720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 194226720 is about 13936.5246743943. The cubic root of 194226720 is about 579.1214602559.

The spelling of 194226720 in words is "one hundred ninety-four million, two hundred twenty-six thousand, seven hundred twenty".