434140191 has 24 divisors (see below), whose sum is σ = 633651200. Its totient is φ = 286417296.

The previous prime is 434140181. The next prime is 434140199. The reversal of 434140191 is 191041434.

434140191 is a `hidden beast` number, since 434 + 1 + 40 + 191 = 666.

It is not a de Polignac number, because 434140191 - 2⁶ = 434140127 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 (434140199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398850 + ... + 399936.

Almost surely, 2^434140191 is an apocalyptic number.

434140191 is a deficient number, since it is larger than the sum of its proper divisors (199511009).

434140191 is a wasteful number, since it uses less digits than its factorization.

434140191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 434140191 is about 20836.0310759991. The cubic root of 434140191 is about 757.1989405862.

It can be divided in two parts, 434 and 140191, that added together give a square (140625 = 375²).

The spelling of 434140191 in words is "four hundred thirty-four million, one hundred forty thousand, one hundred ninety-one".