2399605461 has 48 divisors (see below), whose sum is σ = 3881592000. Its totient is φ = 1416165120.

The previous prime is 2399605459. The next prime is 2399605529. The reversal of 2399605461 is 1645069932.

2399605461 is a `hidden beast` number, since 2 + 39 + 9 + 605 + 4 + 6 + 1 = 666.

It is not a de Polignac number, because 2399605461 - 2¹ = 2399605459 is a prime.

It is a super-3 number, since 3×2399605461³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399605661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 634785 + ... + 638553.

It is an arithmetic number, because the mean of its divisors is an integer number (80866500).

Almost surely, 2^2399605461 is an apocalyptic number.

It is an amenable number.

2399605461 is a deficient number, since it is larger than the sum of its proper divisors (1481986539).

2399605461 is a wasteful number, since it uses less digits than its factorization.

2399605461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 2399605461 is about 48985.7679433527. The cubic root of 2399605461 is about 1338.7925301974.

The spelling of 2399605461 in words is "two billion, three hundred ninety-nine million, six hundred five thousand, four hundred sixty-one".