42442024397 has 2 divisors, whose sum is σ = 42442024398. Its totient is φ = 42442024396.

The previous prime is 42442024333. The next prime is 42442024411. The reversal of 42442024397 is 79342024424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32681769961 + 9760254436 = 180781^2 + 98794^2 .

It is a cyclic number.

It is not a de Polignac number, because 42442024397 - 2⁶ = 42442024333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42442024327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221012198 + 21221012199.

It is an arithmetic number, because the mean of its divisors is an integer number (21221012199).

Almost surely, 2^42442024397 is an apocalyptic number.

It is an amenable number.

42442024397 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442024397 is an equidigital number, since it uses as much as digits as its factorization.

42442024397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 42442024397 in words is "forty-two billion, four hundred forty-two million, twenty-four thousand, three hundred ninety-seven".