42712019 has 8 divisors (see below), whose sum is σ = 51383040. Its totient is φ = 34683336.

The previous prime is 42712013. The next prime is 42712063. The reversal of 42712019 is 91021724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42712019 - 2⁴ = 42712003 is a prime.

It is a super-2 number, since 2×42712019² = 3648633134112722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42712013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160439 + ... + 160704.

It is an arithmetic number, because the mean of its divisors is an integer number (6422880).

Almost surely, 2^42712019 is an apocalyptic number.

42712019 is a deficient number, since it is larger than the sum of its proper divisors (8671021).

42712019 is a wasteful number, since it uses less digits than its factorization.

42712019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321169.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 42712019 is about 6535.4432902444. The cubic root of 42712019 is about 349.5559511543. Note that the first 3 decimals are identical.

The spelling of 42712019 in words is "forty-two million, seven hundred twelve thousand, nineteen".