190349390 has 64 divisors (see below), whose sum is σ = 437184000. Its totient is φ = 57939840.

The previous prime is 190349387. The next prime is 190349413. The reversal of 190349390 is 93943091.

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 31 ways as a sum of consecutive naturals, for example, 30236 + ... + 35984.

It is an arithmetic number, because the mean of its divisors is an integer number (6831000).

Almost surely, 2^190349390 is an apocalyptic number.

190349390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190349390 is an abundant number, since it is smaller than the sum of its proper divisors (246834610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190349390 is a wasteful number, since it uses less digits than its factorization.

190349390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5817.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 190349390 is about 13796.7166383890. The cubic root of 190349390 is about 575.2418793333.

The spelling of 190349390 in words is "one hundred ninety million, three hundred forty-nine thousand, three hundred ninety".