340431234 has 96 divisors (see below), whose sum is σ = 839890944. Its totient is φ = 91016640.

The previous prime is 340431233. The next prime is 340431251. The reversal of 340431234 is 432134043.

It is not an unprimeable number, because it can be changed into a prime (340431233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255879 + ... + 257205.

It is an arithmetic number, because the mean of its divisors is an integer number (8748864).

Almost surely, 2^340431234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340431234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419945472).

340431234 is an abundant number, since it is smaller than the sum of its proper divisors (499459710).

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

340431234 is a wasteful number, since it uses less digits than its factorization.

340431234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 340431234 is about 18450.7786827548. The cubic root of 340431234 is about 698.2481595865.

Adding to 340431234 its reverse (432134043), we get a palindrome (772565277).

The spelling of 340431234 in words is "three hundred forty million, four hundred thirty-one thousand, two hundred thirty-four".