3405120445 has 16 divisors (see below), whose sum is σ = 4401349632. Its totient is φ = 2521601280.

The previous prime is 3405120443. The next prime is 3405120457. The reversal of 3405120445 is 5440215043.

It is not a de Polignac number, because 3405120445 - 2¹ = 3405120443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405120443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474012 + ... + 481141.

It is an arithmetic number, because the mean of its divisors is an integer number (275084352).

Almost surely, 2^3405120445 is an apocalyptic number.

It is an amenable number.

3405120445 is a deficient number, since it is larger than the sum of its proper divisors (996229187).

3405120445 is a wasteful number, since it uses less digits than its factorization.

3405120445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955212.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 3405120445 is about 58353.4098832279. The cubic root of 3405120445 is about 1504.4490788992.

Adding to 3405120445 its reverse (5440215043), we get a palindrome (8845335488).

The spelling of 3405120445 in words is "three billion, four hundred five million, one hundred twenty thousand, four hundred forty-five".