190348705 has 16 divisors (see below), whose sum is σ = 233291664. Its totient is φ = 149044480.

The previous prime is 190348703. The next prime is 190348709. The reversal of 190348705 is 507843091.

It can be written as a sum of positive squares in 8 ways, for example, as 40335201 + 150013504 = 6351^2 + 12248^2 .

It is not a de Polignac number, because 190348705 - 2¹ = 190348703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190348703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178875 + ... + 179935.

It is an arithmetic number, because the mean of its divisors is an integer number (14580729).

Almost surely, 2^190348705 is an apocalyptic number.

It is an amenable number.

190348705 is a deficient number, since it is larger than the sum of its proper divisors (42942959).

190348705 is a wasteful number, since it uses less digits than its factorization.

190348705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 190348705 is about 13796.6918136197. The cubic root of 190348705 is about 575.2411893019.

The spelling of 190348705 in words is "one hundred ninety million, three hundred forty-eight thousand, seven hundred five".