3643240461 has 8 divisors (see below), whose sum is σ = 5551604544. Its totient is φ = 2081851680.

The previous prime is 3643240439. The next prime is 3643240477. The reversal of 3643240461 is 1640423463.

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

It is not a de Polignac number, because 3643240461 - 2¹⁰ = 3643239437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643220461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86743800 + ... + 86743841.

It is an arithmetic number, because the mean of its divisors is an integer number (693950568).

Almost surely, 2^3643240461 is an apocalyptic number.

It is an amenable number.

3643240461 is a deficient number, since it is larger than the sum of its proper divisors (1908364083).

3643240461 is a wasteful number, since it uses less digits than its factorization.

3643240461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173487651.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 3643240461 is about 60359.2616008513. The cubic root of 3643240461 is about 1538.7306768127.

The spelling of 3643240461 in words is "three billion, six hundred forty-three million, two hundred forty thousand, four hundred sixty-one".