42427742 has 8 divisors (see below), whose sum is σ = 72733296. Its totient is φ = 18183312.

The previous prime is 42427739. The next prime is 42427751. The reversal of 42427742 is 24772424.

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

It is a super-2 number, since 2×42427742² = 3600226582437128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42427699 and 42427708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515263 + ... + 1515290.

It is an arithmetic number, because the mean of its divisors is an integer number (9091662).

Almost surely, 2^42427742 is an apocalyptic number.

42427742 is a deficient number, since it is larger than the sum of its proper divisors (30305554).

42427742 is a wasteful number, since it uses less digits than its factorization.

42427742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030562.

The product of its digits is 25088, while the sum is 32.

The square root of 42427742 is about 6513.6581119982. The cubic root of 42427742 is about 348.7787148498.

The spelling of 42427742 in words is "forty-two million, four hundred twenty-seven thousand, seven hundred forty-two".