42627629 has 4 divisors (see below), whose sum is σ = 46502880. Its totient is φ = 38752380.

The previous prime is 42627617. The next prime is 42627631. The reversal of 42627629 is 92672624.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42627629 - 2²⁰ = 41579053 is a prime.

It is a super-2 number, since 2×42627629² = 3634229508323282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42627592 and 42627601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42626629) 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, 1937609 + ... + 1937630.

It is an arithmetic number, because the mean of its divisors is an integer number (11625720).

Almost surely, 2^42627629 is an apocalyptic number.

It is an amenable number.

42627629 is a deficient number, since it is larger than the sum of its proper divisors (3875251).

42627629 is a wasteful number, since it uses less digits than its factorization.

42627629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875250.

The product of its digits is 72576, while the sum is 38.

The square root of 42627629 is about 6528.9837647217. The cubic root of 42627629 is about 349.3255829291.

The spelling of 42627629 in words is "forty-two million, six hundred twenty-seven thousand, six hundred twenty-nine".