2642401439 has 4 divisors (see below), whose sum is σ = 2733518760. Its totient is φ = 2551284120.

The previous prime is 2642401423. The next prime is 2642401457. The reversal of 2642401439 is 9341042462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2642401439 - 2⁴ = 2642401423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2642401399 and 2642401408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642401339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45558617 + ... + 45558674.

It is an arithmetic number, because the mean of its divisors is an integer number (683379690).

Almost surely, 2^2642401439 is an apocalyptic number.

2642401439 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2642401439 is a deficient number, since it is larger than the sum of its proper divisors (91117321).

2642401439 is an equidigital number, since it uses as much as digits as its factorization.

2642401439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91117320.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2642401439 is about 51404.2939743364. The cubic root of 2642401439 is about 1382.5035836437.

The spelling of 2642401439 in words is "two billion, six hundred forty-two million, four hundred one thousand, four hundred thirty-nine".