42427810 has 8 divisors (see below), whose sum is σ = 76370076. Its totient is φ = 16971120.

The previous prime is 42427751. The next prime is 42427811. The reversal of 42427810 is 1872424.

It can be written as a sum of positive squares in 2 ways, for example, as 41306329 + 1121481 = 6427^2 + 1059^2 .

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

It is a super-2 number, since 2×42427810² = 3600238122792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42427811) 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, 2121381 + ... + 2121400.

Almost surely, 2^42427810 is an apocalyptic number.

42427810 is a deficient number, since it is larger than the sum of its proper divisors (33942266).

42427810 is a wasteful number, since it uses less digits than its factorization.

42427810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242788.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 42427810 is about 6513.6633317972. The cubic root of 42427810 is about 348.7789011818.

The spelling of 42427810 in words is "forty-two million, four hundred twenty-seven thousand, eight hundred ten".