3644634 has 32 divisors (see below), whose sum is σ = 8418816. Its totient is φ = 1030320.

The previous prime is 3644629. The next prime is 3644653. The reversal of 3644634 is 4364463.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4089 + ... + 4899.

It is an arithmetic number, because the mean of its divisors is an integer number (263088).

Almost surely, 2^3644634 is an apocalyptic number.

3644634 is an abundant number, since it is smaller than the sum of its proper divisors (4774182).

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

3644634 is a wasteful number, since it uses less digits than its factorization.

3644634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its digits is 20736, while the sum is 30.

The square root of 3644634 is about 1909.0924545448. The cubic root of 3644634 is about 153.8926839898.

It can be divided in two parts, 3644 and 634, that added together give a triangular number (4278 = T₉₂).

The spelling of 3644634 in words is "three million, six hundred forty-four thousand, six hundred thirty-four".