3420630245 has 4 divisors (see below), whose sum is σ = 4104756300. Its totient is φ = 2736504192.

The previous prime is 3420630233. The next prime is 3420630251. The reversal of 3420630245 is 5420360243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1915112644 + 1505517601 = 43762^2 + 38801^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420630245 - 2⁶ = 3420630181 is a prime.

It is a super-2 number, since 2×3420630245² = 23401422546017520050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342063020 + ... + 342063029.

It is an arithmetic number, because the mean of its divisors is an integer number (1026189075).

Almost surely, 2^3420630245 is an apocalyptic number.

It is an amenable number.

3420630245 is a deficient number, since it is larger than the sum of its proper divisors (684126055).

3420630245 is an equidigital number, since it uses as much as digits as its factorization.

3420630245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684126054.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 3420630245 is about 58486.1543016807. The cubic root of 3420630245 is about 1506.7297976904.

Adding to 3420630245 its reverse (5420360243), we get a palindrome (8840990488).

The spelling of 3420630245 in words is "three billion, four hundred twenty million, six hundred thirty thousand, two hundred forty-five".