3406721045 has 16 divisors (see below), whose sum is σ = 5031465600. Its totient is φ = 2156341824.

The previous prime is 3406721041. The next prime is 3406721047. The reversal of 3406721045 is 5401276043.

It is not a de Polignac number, because 3406721045 - 2² = 3406721041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3406721041) 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, 3743195 + ... + 3744104.

It is an arithmetic number, because the mean of its divisors is an integer number (314466600).

Almost surely, 2^3406721045 is an apocalyptic number.

3406721045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3406721045 is a deficient number, since it is larger than the sum of its proper divisors (1624744555).

3406721045 is a wasteful number, since it uses less digits than its factorization.

3406721045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7487324.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 3406721045 is about 58367.1229803217. The cubic root of 3406721045 is about 1504.6847674777.

Adding to 3406721045 its reverse (5401276043), we get a palindrome (8807997088).

The spelling of 3406721045 in words is "three billion, four hundred six million, seven hundred twenty-one thousand, forty-five".