190268399 has 8 divisors (see below), whose sum is σ = 191359488. Its totient is φ = 189181080.

The previous prime is 190268389. The next prime is 190268401. The reversal of 190268399 is 993862091.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190268399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190268389) 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, 200444 + ... + 201390.

It is an arithmetic number, because the mean of its divisors is an integer number (23919936).

Almost surely, 2^190268399 is an apocalyptic number.

190268399 is a deficient number, since it is larger than the sum of its proper divisors (1091089).

190268399 is an equidigital number, since it uses as much as digits as its factorization.

190268399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 190268399 is about 13793.7811712380. The cubic root of 190268399 is about 575.1602819711.

The spelling of 190268399 in words is "one hundred ninety million, two hundred sixty-eight thousand, three hundred ninety-nine".