194928790 has 32 divisors (see below), whose sum is σ = 422104320. Its totient is φ = 63314784.

The previous prime is 194928781. The next prime is 194928821. The reversal of 194928790 is 97829491.

194928790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71952 + ... + 74611.

It is an arithmetic number, because the mean of its divisors is an integer number (13190760).

Almost surely, 2^194928790 is an apocalyptic number.

194928790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194928790 is an abundant number, since it is smaller than the sum of its proper divisors (227175530).

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

194928790 is a wasteful number, since it uses less digits than its factorization.

194928790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146596.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 194928790 is about 13961.6900839404. The cubic root of 194928790 is about 579.8184033149.

It can be divided in two parts, 19492 and 8790, that added together give a palindrome (28282).

The spelling of 194928790 in words is "one hundred ninety-four million, nine hundred twenty-eight thousand, seven hundred ninety".