42861419 has 4 divisors (see below), whose sum is σ = 42943896. Its totient is φ = 42778944.

The previous prime is 42861389. The next prime is 42861431. The reversal of 42861419 is 91416824.

It is a happy number.

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-42861419 is a prime.

It is a super-2 number, since 2×42861419² = 3674202477387122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42861479) 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, 40454 + ... + 41499.

It is an arithmetic number, because the mean of its divisors is an integer number (10735974).

Almost surely, 2^42861419 is an apocalyptic number.

42861419 is a deficient number, since it is larger than the sum of its proper divisors (82477).

42861419 is an equidigital number, since it uses as much as digits as its factorization.

42861419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82476.

The product of its digits is 13824, while the sum is 35.

The square root of 42861419 is about 6546.8632947389. The cubic root of 42861419 is about 349.9630409953.

The spelling of 42861419 in words is "forty-two million, eight hundred sixty-one thousand, four hundred nineteen".