42344019 has 16 divisors (see below), whose sum is σ = 63114240. Its totient is φ = 28057320.

The previous prime is 42344017. The next prime is 42344023. The reversal of 42344019 is 91044324.

It is not a de Polignac number, because 42344019 - 2¹ = 42344017 is a prime.

It is a super-2 number, since 2×42344019² = 3586031890144722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42343983 and 42344001.

It is not an unprimeable number, because it can be changed into a prime (42344011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187 + ... + 9204.

It is an arithmetic number, because the mean of its divisors is an integer number (3944640).

Almost surely, 2^42344019 is an apocalyptic number.

42344019 is a deficient number, since it is larger than the sum of its proper divisors (20770221).

42344019 is a wasteful number, since it uses less digits than its factorization.

42344019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9567 (or 9561 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42344019 is about 6507.2282117657. The cubic root of 42344019 is about 348.5491478461.

The spelling of 42344019 in words is "forty-two million, three hundred forty-four thousand, nineteen".