2405724161 has 8 divisors (see below), whose sum is σ = 2447902848. Its totient is φ = 2363634000.

The previous prime is 2405724157. The next prime is 2405724173. The reversal of 2405724161 is 1614275042.

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

It is a cyclic number.

It is not a de Polignac number, because 2405724161 - 2² = 2405724157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405724131) 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, 33926 + ... + 77216.

It is an arithmetic number, because the mean of its divisors is an integer number (305987856).

Almost surely, 2^2405724161 is an apocalyptic number.

It is an amenable number.

2405724161 is a deficient number, since it is larger than the sum of its proper divisors (42178687).

2405724161 is an equidigital number, since it uses as much as digits as its factorization.

2405724161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44263.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2405724161 is about 49048.1820356270. The cubic root of 2405724161 is about 1339.9294833687.

The spelling of 2405724161 in words is "two billion, four hundred five million, seven hundred twenty-four thousand, one hundred sixty-one".