42368719 has 4 divisors (see below), whose sum is σ = 42472720. Its totient is φ = 42264720.

The previous prime is 42368701. The next prime is 42368731. The reversal of 42368719 is 91786324.

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 42368719 - 2¹⁹ = 41844431 is a prime.

It is a super-2 number, since 2×42368719² = 3590216699401922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42368749) 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, 51387 + ... + 52204.

It is an arithmetic number, because the mean of its divisors is an integer number (10618180).

Almost surely, 2^42368719 is an apocalyptic number.

42368719 is a deficient number, since it is larger than the sum of its proper divisors (104001).

42368719 is a wasteful number, since it uses less digits than its factorization.

42368719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104000.

The product of its digits is 72576, while the sum is 40.

The square root of 42368719 is about 6509.1258245635. The cubic root of 42368719 is about 348.6169062587.

The spelling of 42368719 in words is "forty-two million, three hundred sixty-eight thousand, seven hundred nineteen".