340042430 has 128 divisors (see below), whose sum is σ = 807045120. Its totient is φ = 100154880.

The previous prime is 340042427. The next prime is 340042433. The reversal of 340042430 is 34240043.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (340042427) and next prime (340042433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340042433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1227452 + ... + 1227728.

It is an arithmetic number, because the mean of its divisors is an integer number (6305040).

Almost surely, 2^340042430 is an apocalyptic number.

340042430 is an abundant number, since it is smaller than the sum of its proper divisors (467002690).

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

340042430 is a wasteful number, since it uses less digits than its factorization.

340042430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 340042430 is about 18440.2394236084. The cubic root of 340042430 is about 697.9822369680.

Adding to 340042430 its reverse (34240043), we get a palindrome (374282473).

The spelling of 340042430 in words is "three hundred forty million, forty-two thousand, four hundred thirty".