42036619 has 4 divisors (see below), whose sum is σ = 42367744. Its totient is φ = 41705496.

The previous prime is 42036583. The next prime is 42036623. The reversal of 42036619 is 91663024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42036619 - 2¹⁷ = 41905547 is a prime.

It is a super-2 number, since 2×42036619² = 3534154673902322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42036629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165372 + ... + 165625.

It is an arithmetic number, because the mean of its divisors is an integer number (10591936).

Almost surely, 2^42036619 is an apocalyptic number.

42036619 is a deficient number, since it is larger than the sum of its proper divisors (331125).

42036619 is a wasteful number, since it uses less digits than its factorization.

42036619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331124.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 42036619 is about 6483.5653000490. The cubic root of 42036619 is about 347.7036578570.

The spelling of 42036619 in words is "forty-two million, thirty-six thousand, six hundred nineteen".