3405654 has 48 divisors (see below), whose sum is σ = 8536320. Its totient is φ = 961200.

The previous prime is 3405653. The next prime is 3405671. The reversal of 3405654 is 4565043.

3405654 is a `hidden beast` number, since 3 + 4 + 0 + 5 + 654 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18937 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (177840).

Almost surely, 2^3405654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3405654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4268160).

3405654 is an abundant number, since it is smaller than the sum of its proper divisors (5130666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3405654 is a wasteful number, since it uses less digits than its factorization.

3405654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 3405654 is about 1845.4414106116. The cubic root of 3405654 is about 150.4527653154.

The spelling of 3405654 in words is "three million, four hundred five thousand, six hundred fifty-four".