244642143403 has 4 divisors (see below), whose sum is σ = 279591021040. Its totient is φ = 209693265768.

The previous prime is 244642143397. The next prime is 244642143409. The reversal of 244642143403 is 304341246442.

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

It is an interprime number because it is at equal distance from previous prime (244642143397) and next prime (244642143409).

It is not a de Polignac number, because 244642143403 - 2¹⁷ = 244642012331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244642143409) 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, 17474438808 + ... + 17474438821.

It is an arithmetic number, because the mean of its divisors is an integer number (69897755260).

Almost surely, 2^244642143403 is an apocalyptic number.

244642143403 is a deficient number, since it is larger than the sum of its proper divisors (34948877637).

244642143403 is an equidigital number, since it uses as much as digits as its factorization.

244642143403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34948877636.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 244642143403 its reverse (304341246442), we get a palindrome (548983389845).

The spelling of 244642143403 in words is "two hundred forty-four billion, six hundred forty-two million, one hundred forty-three thousand, four hundred three".