190028399 has 8 divisors (see below), whose sum is σ = 212360400. Its totient is φ = 168539200.

The previous prime is 190028341. The next prime is 190028407. The reversal of 190028399 is 993820091.

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 190028399 - 2²⁰ = 188979823 is a prime.

It is a super-2 number, since 2×190028399² = 72221584853006402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190028299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210224 + ... + 211125.

It is an arithmetic number, because the mean of its divisors is an integer number (26545050).

Almost surely, 2^190028399 is an apocalyptic number.

190028399 is a deficient number, since it is larger than the sum of its proper divisors (22332001).

190028399 is a wasteful number, since it uses less digits than its factorization.

190028399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421401.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 190028399 is about 13785.0788536011. The cubic root of 190028399 is about 574.9183490865.

The spelling of 190028399 in words is "one hundred ninety million, twenty-eight thousand, three hundred ninety-nine".