3400641 has 12 divisors (see below), whose sum is σ = 4930068. Its totient is φ = 2258784.

The previous prime is 3400637. The next prime is 3400673. The reversal of 3400641 is 1460043.

It can be written as a sum of positive squares in 2 ways, for example, as 608400 + 2792241 = 780^2 + 1671^2 .

It is not a de Polignac number, because 3400641 - 2² = 3400637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3400681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2851 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (410839).

Almost surely, 2^3400641 is an apocalyptic number.

It is an amenable number.

3400641 is a deficient number, since it is larger than the sum of its proper divisors (1529427).

3400641 is a wasteful number, since it uses less digits than its factorization.

3400641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3400641 is about 1844.0826987963. The cubic root of 3400641 is about 150.3789087153.

Adding to 3400641 its reverse (1460043), we get a palindrome (4860684).

The spelling of 3400641 in words is "three million, four hundred thousand, six hundred forty-one".