42938019 has 20 divisors (see below), whose sum is σ = 65880144. Its totient is φ = 27849744.

The previous prime is 42937997. The next prime is 42938041. The reversal of 42938019 is 91083924.

It is an interprime number because it is at equal distance from previous prime (42937997) and next prime (42938041).

It is not a de Polignac number, because 42938019 - 2²⁰ = 41889443 is a prime.

It is a super-2 number, since 2×42938019² = 3687346951288722, which contains 22 as substring.

42938019 is a modest number, since divided by 8019 gives 4293 as remainder.

It is not an unprimeable number, because it can be changed into a prime (42938059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4167 + ... + 10160.

Almost surely, 2^42938019 is an apocalyptic number.

42938019 is a deficient number, since it is larger than the sum of its proper divisors (22942125).

42938019 is a wasteful number, since it uses less digits than its factorization.

42938019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14376 (or 14367 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 42938019 is about 6552.7108130910. The cubic root of 42938019 is about 350.1713963250.

The spelling of 42938019 in words is "forty-two million, nine hundred thirty-eight thousand, nineteen".