4340021434 has 12 divisors (see below), whose sum is σ = 7572894714. Its totient is φ = 1860009144.

The previous prime is 4340021429. The next prime is 4340021459. The reversal of 4340021434 is 4341200434.

It can be written as a sum of positive squares in only one way, i.e., 3994619209 + 345402225 = 63203^2 + 18585^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4340021399 and 4340021408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22142869 + ... + 22143064.

Almost surely, 2^4340021434 is an apocalyptic number.

4340021434 is a deficient number, since it is larger than the sum of its proper divisors (3232873280).

4340021434 is a wasteful number, since it uses less digits than its factorization.

4340021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44285949 (or 44285942 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4340021434 is about 65878.8390456298. The cubic root of 4340021434 is about 1631.1627361920.

Adding to 4340021434 its reverse (4341200434), we get a palindrome (8681221868).

The spelling of 4340021434 in words is "four billion, three hundred forty million, twenty-one thousand, four hundred thirty-four".