190390 has 16 divisors (see below), whose sum is σ = 348480. Its totient is φ = 74880.

The previous prime is 190387. The next prime is 190391. The reversal of 190390 is 93091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190391) 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, 670 + ... + 910.

It is an arithmetic number, because the mean of its divisors is an integer number (21780).

2¹⁹⁰³⁹⁰ is an apocalyptic number.

190390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190390 is a deficient number, since it is larger than the sum of its proper divisors (158090).

190390 is a wasteful number, since it uses less digits than its factorization.

190390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 190390 is about 436.3370257038. The cubic root of 190390 is about 57.5282784659.

The spelling of 190390 in words is "one hundred ninety thousand, three hundred ninety".