2321422440 has 64 divisors (see below), whose sum is σ = 6972739200. Its totient is φ = 618292992.

The previous prime is 2321422427. The next prime is 2321422447. The reversal of 2321422440 is 442241232.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2321422440.

It is not an unprimeable number, because it can be changed into a prime (2321422447) 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 15 ways as a sum of consecutive naturals, for example, 91021 + ... + 113699.

It is an arithmetic number, because the mean of its divisors is an integer number (108949050).

Almost surely, 2^2321422440 is an apocalyptic number.

2321422440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321422440 is an abundant number, since it is smaller than the sum of its proper divisors (4651316760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2321422440 is a wasteful number, since it uses less digits than its factorization.

2321422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23546 (or 23542 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2321422440 is about 48181.1419540882. The cubic root of 2321422440 is about 1324.0916883836.

Adding to 2321422440 its reverse (442241232), we get a palindrome (2763663672).

It can be divided in two parts, 23214 and 22440, that added together give a palindrome (45654).

The spelling of 2321422440 in words is "two billion, three hundred twenty-one million, four hundred twenty-two thousand, four hundred forty".