42404363 has 2 divisors, whose sum is σ = 42404364. Its totient is φ = 42404362.

The previous prime is 42404359. The next prime is 42404419. The reversal of 42404363 is 36340424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42404363 - 2² = 42404359 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42404863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21202181 + 21202182.

It is an arithmetic number, because the mean of its divisors is an integer number (21202182).

Almost surely, 2^42404363 is an apocalyptic number.

42404363 is a deficient number, since it is larger than the sum of its proper divisors (1).

42404363 is an equidigital number, since it uses as much as digits as its factorization.

42404363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 42404363 is about 6511.8632510212. The cubic root of 42404363 is about 348.7146404544.

Adding to 42404363 its reverse (36340424), we get a palindrome (78744787).

The spelling of 42404363 in words is "forty-two million, four hundred four thousand, three hundred sixty-three".