42641219 has 4 divisors (see below), whose sum is σ = 45149544. Its totient is φ = 40132896.

The previous prime is 42641197. The next prime is 42641231. The reversal of 42641219 is 91214624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42641219 is a prime.

It is a super-2 number, since 2×42641219² = 3636547115611922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42641191 and 42641200.

It is not an unprimeable number, because it can be changed into a prime (42641239) 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, 1254137 + ... + 1254170.

It is an arithmetic number, because the mean of its divisors is an integer number (11287386).

Almost surely, 2^42641219 is an apocalyptic number.

42641219 is a deficient number, since it is larger than the sum of its proper divisors (2508325).

42641219 is a wasteful number, since it uses less digits than its factorization.

42641219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508324.

The product of its digits is 3456, while the sum is 29.

The square root of 42641219 is about 6530.0244256817. The cubic root of 42641219 is about 349.3627015020.

The spelling of 42641219 in words is "forty-two million, six hundred forty-one thousand, two hundred nineteen".