2404612561 has 8 divisors (see below), whose sum is σ = 2591121960. Its totient is φ = 2218323072.

The previous prime is 2404612531. The next prime is 2404612577. The reversal of 2404612561 is 1652164042.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54302161 + 2350310400 = 7369^2 + 48480^2 .

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 2404612561 - 2¹³ = 2404604369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2404612501) 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, 31900 + ... + 76333.

It is an arithmetic number, because the mean of its divisors is an integer number (323890245).

Almost surely, 2^2404612561 is an apocalyptic number.

It is an amenable number.

2404612561 is a deficient number, since it is larger than the sum of its proper divisors (186509399).

2404612561 is a wasteful number, since it uses less digits than its factorization.

2404612561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109955.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2404612561 is about 49036.8490117381. The cubic root of 2404612561 is about 1339.7230735751.

The spelling of 2404612561 in words is "two billion, four hundred four million, six hundred twelve thousand, five hundred sixty-one".