193028390 has 16 divisors (see below), whose sum is σ = 348243408. Its totient is φ = 77035296.

The previous prime is 193028359. The next prime is 193028417. The reversal of 193028390 is 93820391.

It is a self number, because there is not a number n which added to its sum of digits gives 193028390.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 17357 + ... + 26216.

It is an arithmetic number, because the mean of its divisors is an integer number (21765213).

Almost surely, 2^193028390 is an apocalyptic number.

193028390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193028390 is a deficient number, since it is larger than the sum of its proper divisors (155215018).

193028390 is a wasteful number, since it uses less digits than its factorization.

193028390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44023.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 193028390 is about 13893.4657303352. The cubic root of 193028390 is about 577.9279911730.

The spelling of 193028390 in words is "one hundred ninety-three million, twenty-eight thousand, three hundred ninety".