42627029 has 4 divisors (see below), whose sum is σ = 42701484. Its totient is φ = 42552576.

The previous prime is 42627023. The next prime is 42627031. The reversal of 42627029 is 92072624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27804529 + 14822500 = 5273^2 + 3850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42627029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42626986 and 42627004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42627023) 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, 36362 + ... + 37515.

It is an arithmetic number, because the mean of its divisors is an integer number (10675371).

Almost surely, 2^42627029 is an apocalyptic number.

It is an amenable number.

42627029 is a deficient number, since it is larger than the sum of its proper divisors (74455).

42627029 is an equidigital number, since it uses as much as digits as its factorization.

42627029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74454.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 42627029 is about 6528.9378156022. The cubic root of 42627029 is about 349.3239439582.

The spelling of 42627029 in words is "forty-two million, six hundred twenty-seven thousand, twenty-nine".