42427669 has 8 divisors (see below), whose sum is σ = 42861312. Its totient is φ = 41996640.

The previous prime is 42427639. The next prime is 42427681. The reversal of 42427669 is 96672424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42427669 is a prime.

It is a super-2 number, since 2×42427669² = 3600214193547122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42427639) 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, 48732 + ... + 49594.

It is an arithmetic number, because the mean of its divisors is an integer number (5357664).

Almost surely, 2^42427669 is an apocalyptic number.

It is an amenable number.

42427669 is a deficient number, since it is larger than the sum of its proper divisors (433643).

42427669 is a wasteful number, since it uses less digits than its factorization.

42427669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307.

The product of its digits is 145152, while the sum is 40.

The square root of 42427669 is about 6513.6525083858. The cubic root of 42427669 is about 348.7785148167.

It can be divided in two parts, 4242 and 7669, that added together give a palindrome (11911).

The spelling of 42427669 in words is "forty-two million, four hundred twenty-seven thousand, six hundred sixty-nine".