2440420311 has 32 divisors (see below), whose sum is σ = 3743973376. Its totient is φ = 1385100000.

The previous prime is 2440420309. The next prime is 2440420321. The reversal of 2440420311 is 1130240442.

It is not a de Polignac number, because 2440420311 - 2¹ = 2440420309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440420321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3249186 + ... + 3249936.

It is an arithmetic number, because the mean of its divisors is an integer number (116999168).

Almost surely, 2^2440420311 is an apocalyptic number.

2440420311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2440420311 is a deficient number, since it is larger than the sum of its proper divisors (1303553065).

2440420311 is a wasteful number, since it uses less digits than its factorization.

2440420311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2440420311 is about 49400.6104314511. The cubic root of 2440420311 is about 1346.3403968167.

Adding to 2440420311 its reverse (1130240442), we get a palindrome (3570660753).

The spelling of 2440420311 in words is "two billion, four hundred forty million, four hundred twenty thousand, three hundred eleven".