194023830 has 288 divisors, whose sum is σ = 648891648. Its totient is φ = 36691200.

The previous prime is 194023829. The next prime is 194023861. The reversal of 194023830 is 38320491.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2732695 + ... + 2732765.

It is an arithmetic number, because the mean of its divisors is an integer number (2253096).

Almost surely, 2^194023830 is an apocalyptic number.

194023830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 194023830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324445824).

194023830 is an abundant number, since it is smaller than the sum of its proper divisors (454867818).

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

194023830 is a wasteful number, since it uses less digits than its factorization.

194023830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 194023830 is about 13929.2436980620. The cubic root of 194023830 is about 578.9197391440.

It can be divided in two parts, 19402 and 3830, that added together give a palindrome (23232).

The spelling of 194023830 in words is "one hundred ninety-four million, twenty-three thousand, eight hundred thirty".