340140434 has 8 divisors (see below), whose sum is σ = 517200060. Its totient is φ = 167740416.

The previous prime is 340140431. The next prime is 340140461. The reversal of 340140434 is 434041043.

It can be written as a sum of positive squares in 2 ways, for example, as 331349209 + 8791225 = 18203^2 + 2965^2 .

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

It is not an unprimeable number, because it can be changed into a prime (340140431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164719 + ... + 1165010.

Almost surely, 2^340140434 is an apocalyptic number.

340140434 is a deficient number, since it is larger than the sum of its proper divisors (177059626).

340140434 is a wasteful number, since it uses less digits than its factorization.

340140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329804.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 340140434 is about 18442.8965729356. The cubic root of 340140434 is about 698.0492859345.

Adding to 340140434 its reverse (434041043), we get a palindrome (774181477).

The spelling of 340140434 in words is "three hundred forty million, one hundred forty thousand, four hundred thirty-four".