190066393 has 8 divisors (see below), whose sum is σ = 207444960. Its totient is φ = 172704480.

The previous prime is 190066391. The next prime is 190066397. The reversal of 190066393 is 393660091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190066393 - 2¹ = 190066391 is a prime.

It is a super-2 number, since 2×190066393² = 72250467496060898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190066391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42498 + ... + 46756.

It is an arithmetic number, because the mean of its divisors is an integer number (25930620).

Almost surely, 2^190066393 is an apocalyptic number.

It is an amenable number.

190066393 is a deficient number, since it is larger than the sum of its proper divisors (17378567).

190066393 is a wasteful number, since it uses less digits than its factorization.

190066393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8327.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 190066393 is about 13786.4568689711. The cubic root of 190066393 is about 574.9566626443.

The spelling of 190066393 in words is "one hundred ninety million, sixty-six thousand, three hundred ninety-three".