3641994406 has 8 divisors (see below), whose sum is σ = 5651370720. Its totient is φ = 1758204168.

The previous prime is 3641994403. The next prime is 3641994413. The reversal of 3641994406 is 6044991463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641994403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31396446 + ... + 31396561.

It is an arithmetic number, because the mean of its divisors is an integer number (706421340).

Almost surely, 2^3641994406 is an apocalyptic number.

3641994406 is a deficient number, since it is larger than the sum of its proper divisors (2009376314).

3641994406 is a wasteful number, since it uses less digits than its factorization.

3641994406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62793038.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 3641994406 is about 60348.9387313480. The cubic root of 3641994406 is about 1538.5552321132. Note that the first 3 decimals are identical.

The spelling of 3641994406 in words is "three billion, six hundred forty-one million, nine hundred ninety-four thousand, four hundred six".