2440642769 has 4 divisors (see below), whose sum is σ = 2546757696. Its totient is φ = 2334527844.

The previous prime is 2440642753. The next prime is 2440642819. The reversal of 2440642769 is 9672460442.

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 2440642769 - 2⁴ = 2440642753 is a prime.

It is a super-2 number, since 2×2440642769² = 11913474251743974722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440242769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53057429 + ... + 53057474.

It is an arithmetic number, because the mean of its divisors is an integer number (636689424).

Almost surely, 2^2440642769 is an apocalyptic number.

It is an amenable number.

2440642769 is a deficient number, since it is larger than the sum of its proper divisors (106114927).

2440642769 is a wasteful number, since it uses less digits than its factorization.

2440642769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106114926.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 2440642769 is about 49402.8619515105. The cubic root of 2440642769 is about 1346.3813044001.

The spelling of 2440642769 in words is "two billion, four hundred forty million, six hundred forty-two thousand, seven hundred sixty-nine".