340220430 has 96 divisors (see below), whose sum is σ = 968524128. Its totient is φ = 82176000.

The previous prime is 340220417. The next prime is 340220437. The reversal of 340220430 is 34022043.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340220437) 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 47 ways as a sum of consecutive naturals, for example, 396562 + ... + 397418.

It is an arithmetic number, because the mean of its divisors is an integer number (10088793).

Almost surely, 2^340220430 is an apocalyptic number.

340220430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 340220430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484262064).

340220430 is an abundant number, since it is smaller than the sum of its proper divisors (628303698).

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

340220430 is a wasteful number, since it uses less digits than its factorization.

340220430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1279 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 340220430 is about 18445.0651937042. The cubic root of 340220430 is about 698.1040052681.

Adding to 340220430 its reverse (34022043), we get a palindrome (374242473).

It can be divided in two parts, 3402 and 20430, that added together give a palindrome (23832).

The spelling of 340220430 in words is "three hundred forty million, two hundred twenty thousand, four hundred thirty".