42044419 has 2 divisors, whose sum is σ = 42044420. Its totient is φ = 42044418.

The previous prime is 42044413. The next prime is 42044441. The reversal of 42044419 is 91444024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42044419 is a prime.

It is a super-2 number, since 2×42044419² = 3535466338095122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42044413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21022209 + 21022210.

It is an arithmetic number, because the mean of its divisors is an integer number (21022210).

Almost surely, 2^42044419 is an apocalyptic number.

42044419 is a deficient number, since it is larger than the sum of its proper divisors (1).

42044419 is an equidigital number, since it uses as much as digits as its factorization.

42044419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 42044419 is about 6484.1667930429. The cubic root of 42044419 is about 347.7251622887.

The spelling of 42044419 in words is "forty-two million, forty-four thousand, four hundred nineteen".