3420660243 has 32 divisors (see below), whose sum is σ = 6123704832. Its totient is φ = 1640275200.

The previous prime is 3420660239. The next prime is 3420660247.

It is a happy number.

3420660243 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (3420660239) and next prime (3420660247).

It is not a de Polignac number, because 3420660243 - 2² = 3420660239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3420660243.

It is not an unprimeable number, because it can be changed into a prime (3420660247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 566538 + ... + 572543.

It is an arithmetic number, because the mean of its divisors is an integer number (191365776).

Almost surely, 2^3420660243 is an apocalyptic number.

3420660243 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3420660243 is a deficient number, since it is larger than the sum of its proper divisors (2703044589).

3420660243 is a wasteful number, since it uses less digits than its factorization.

3420660243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139115.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 3420660243 is about 58486.4107549779. The cubic root of 3420660243 is about 1506.7342022148.

It can be divided in two parts, 34206 and 60243, that added together give a palindrome (94449).

The spelling of 3420660243 in words is "three billion, four hundred twenty million, six hundred sixty thousand, two hundred forty-three".