42818619 has 8 divisors (see below), whose sum is σ = 57232720. Its totient is φ = 28475136.

The previous prime is 42818603. The next prime is 42818623. The reversal of 42818619 is 91681824.

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

It is not a de Polignac number, because 42818619 - 2⁴ = 42818603 is a prime.

It is a super-2 number, since 2×42818619² = 3666868266134322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42818639) 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, 16222 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (7154090).

Almost surely, 2^42818619 is an apocalyptic number.

42818619 is a deficient number, since it is larger than the sum of its proper divisors (14414101).

42818619 is a wasteful number, since it uses less digits than its factorization.

42818619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35309.

The product of its digits is 27648, while the sum is 39.

The square root of 42818619 is about 6543.5937373893. The cubic root of 42818619 is about 349.8465150152.

The spelling of 42818619 in words is "forty-two million, eight hundred eighteen thousand, six hundred nineteen".