434140838 has 8 divisors (see below), whose sum is σ = 660931032. Its totient is φ = 213830496.

The previous prime is 434140829. The next prime is 434140867. The reversal of 434140838 is 838041434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 434140798 and 434140807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619795 + ... + 1620062.

It is an arithmetic number, because the mean of its divisors is an integer number (82616379).

Almost surely, 2^434140838 is an apocalyptic number.

434140838 is a deficient number, since it is larger than the sum of its proper divisors (226790194).

434140838 is a wasteful number, since it uses less digits than its factorization.

434140838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239926.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 434140838 is about 20836.0466019828. The cubic root of 434140838 is about 757.1993167377.

The spelling of 434140838 in words is "four hundred thirty-four million, one hundred forty thousand, eight hundred thirty-eight".