2400984581 has 4 divisors (see below), whose sum is σ = 2411751552. Its totient is φ = 2390217612.

The previous prime is 2400984569. The next prime is 2400984587. The reversal of 2400984581 is 1854890042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2400984581 - 2¹⁸ = 2400722437 is a prime.

It is a super-2 number, since 2×2400984581² = 11529453916399491122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400984587) 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, 5383151 + ... + 5383596.

It is an arithmetic number, because the mean of its divisors is an integer number (602937888).

Almost surely, 2^2400984581 is an apocalyptic number.

It is an amenable number.

2400984581 is a deficient number, since it is larger than the sum of its proper divisors (10766971).

2400984581 is a wasteful number, since it uses less digits than its factorization.

2400984581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766970.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 2400984581 is about 48999.8426630127. The cubic root of 2400984581 is about 1339.0489615122.

The spelling of 2400984581 in words is "two billion, four hundred million, nine hundred eighty-four thousand, five hundred eighty-one".