2440393969 has 6 divisors (see below), whose sum is σ = 2642556966. Its totient is φ = 2252671200.

The previous prime is 2440393939. The next prime is 2440394009. The reversal of 2440393969 is 9693930442.

It can be written as a sum of positive squares in 3 ways, for example, as 297907600 + 2142486369 = 17260^2 + 46287^2 .

It is not a de Polignac number, because 2440393969 - 2⁵ = 2440393937 is a prime.

It is a super-2 number, since 2×2440393969² = 11911045447863145922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440393939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7219932 + ... + 7220269.

It is an arithmetic number, because the mean of its divisors is an integer number (440426161).

Almost surely, 2^2440393969 is an apocalyptic number.

It is an amenable number.

2440393969 is a deficient number, since it is larger than the sum of its proper divisors (202162997).

2440393969 is a wasteful number, since it uses less digits than its factorization.

2440393969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440227 (or 14440214 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 49.

The square root of 2440393969 is about 49400.3438145930. The cubic root of 2440393969 is about 1346.3355526476.

The spelling of 2440393969 in words is "two billion, four hundred forty million, three hundred ninety-three thousand, nine hundred sixty-nine".