340440430 has 16 divisors (see below), whose sum is σ = 668501424. Its totient is φ = 123796480.

The previous prime is 340440427. The next prime is 340440439. The reversal of 340440430 is 34044043.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340440439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547347 + ... + 1547566.

It is an arithmetic number, because the mean of its divisors is an integer number (41781339).

Almost surely, 2^340440430 is an apocalyptic number.

340440430 is a deficient number, since it is larger than the sum of its proper divisors (328060994).

340440430 is a wasteful number, since it uses less digits than its factorization.

340440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094931.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 340440430 is about 18451.0278846464. The cubic root of 340440430 is about 698.2544467419.

Adding to 340440430 its reverse (34044043), we get a palindrome (374484473).

It can be divided in two parts, 3404 and 40430, that added together give a palindrome (43834).

The spelling of 340440430 in words is "three hundred forty million, four hundred forty thousand, four hundred thirty".