340431402 has 32 divisors (see below), whose sum is σ = 695837952. Its totient is φ = 110994624.

The previous prime is 340431397. The next prime is 340431419. The reversal of 340431402 is 204134043.

340431402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115248 + ... + 118164.

It is an arithmetic number, because the mean of its divisors is an integer number (21744936).

Almost surely, 2^340431402 is an apocalyptic number.

340431402 is an abundant number, since it is smaller than the sum of its proper divisors (355406550).

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

340431402 is a wasteful number, since it uses less digits than its factorization.

340431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 340431402 is about 18450.7832354077. The cubic root of 340431402 is about 698.2482744464.

Adding to 340431402 its reverse (204134043), we get a palindrome (544565445).

The spelling of 340431402 in words is "three hundred forty million, four hundred thirty-one thousand, four hundred two".