42237619 has 2 divisors, whose sum is σ = 42237620. Its totient is φ = 42237618.

The previous prime is 42237607. The next prime is 42237641. The reversal of 42237619 is 91673224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42237619 - 2²⁵ = 8683187 is a prime.

It is a super-2 number, since 2×42237619² = 3568032917578322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42237319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21118809 + 21118810.

It is an arithmetic number, because the mean of its divisors is an integer number (21118810).

Almost surely, 2^42237619 is an apocalyptic number.

42237619 is a deficient number, since it is larger than the sum of its proper divisors (1).

42237619 is an equidigital number, since it uses as much as digits as its factorization.

42237619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 42237619 is about 6499.0475456024. The cubic root of 42237619 is about 348.2569638418.

The spelling of 42237619 in words is "forty-two million, two hundred thirty-seven thousand, six hundred nineteen".