42715819 has 8 divisors (see below), whose sum is σ = 45216080. Its totient is φ = 40240800.

The previous prime is 42715787. The next prime is 42715837. The reversal of 42715819 is 91851724.

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 42715819 - 2⁵ = 42715787 is a prime.

It is a super-2 number, since 2×42715819² = 3649282385681522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42715859) 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, 2772 + ... + 9649.

It is an arithmetic number, because the mean of its divisors is an integer number (5652010).

Almost surely, 2^42715819 is an apocalyptic number.

42715819 is a deficient number, since it is larger than the sum of its proper divisors (2500261).

42715819 is a wasteful number, since it uses less digits than its factorization.

42715819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621.

The product of its digits is 20160, while the sum is 37.

The square root of 42715819 is about 6535.7340062154. The cubic root of 42715819 is about 349.5663172703.

It can be divided in two parts, 42715 and 819, that added together give a palindrome (43534).

The spelling of 42715819 in words is "forty-two million, seven hundred fifteen thousand, eight hundred nineteen".