42027970 has 8 divisors (see below), whose sum is σ = 75650364. Its totient is φ = 16811184.

The previous prime is 42027959. The next prime is 42027991. The reversal of 42027970 is 7972024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36687249 + 5340721 = 6057^2 + 2311^2 .

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

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, 2101389 + ... + 2101408.

Almost surely, 2^42027970 is an apocalyptic number.

42027970 is a deficient number, since it is larger than the sum of its proper divisors (33622394).

42027970 is a wasteful number, since it uses less digits than its factorization.

42027970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202804.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 42027970 is about 6482.8982716066. The cubic root of 42027970 is about 347.6798096402.

Adding to 42027970 its reverse (7972024), we get a palindrome (49999994).

The spelling of 42027970 in words is "forty-two million, twenty-seven thousand, nine hundred seventy".