2321440442 has 8 divisors (see below), whose sum is σ = 3529861716. Its totient is φ = 1144819872.

The previous prime is 2321440417. The next prime is 2321440469. The reversal of 2321440442 is 2440441232.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2270617801 + 50822641 = 47651^2 + 7129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7949993 + ... + 7950284.

Almost surely, 2^2321440442 is an apocalyptic number.

2321440442 is a deficient number, since it is larger than the sum of its proper divisors (1208421274).

2321440442 is a wasteful number, since it uses less digits than its factorization.

2321440442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15900352.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 2321440442 is about 48181.3287695555. The cubic root of 2321440442 is about 1324.0951110318.

Adding to 2321440442 its reverse (2440441232), we get a palindrome (4761881674).

The spelling of 2321440442 in words is "two billion, three hundred twenty-one million, four hundred forty thousand, four hundred forty-two".