44023042391 has 2 divisors, whose sum is σ = 44023042392. Its totient is φ = 44023042390.

The previous prime is 44023042387. The next prime is 44023042423. The reversal of 44023042391 is 19324032044.

It is an a-pointer prime, because the next prime (44023042423) can be obtained adding 44023042391 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44023042391 - 2² = 44023042387 is a prime.

It is a super-2 number, since 2×44023042391² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44023042331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22011521195 + 22011521196.

It is an arithmetic number, because the mean of its divisors is an integer number (22011521196).

Almost surely, 2^44023042391 is an apocalyptic number.

44023042391 is a deficient number, since it is larger than the sum of its proper divisors (1).

44023042391 is an equidigital number, since it uses as much as digits as its factorization.

44023042391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 44023042391 in words is "forty-four billion, twenty-three million, forty-two thousand, three hundred ninety-one".