42774146 has 8 divisors (see below), whose sum is σ = 65895420. Its totient is φ = 20809008.

The previous prime is 42774139. The next prime is 42774157. The reversal of 42774146 is 64147724.

It can be written as a sum of positive squares in 2 ways, for example, as 42758521 + 15625 = 6539^2 + 125^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288941 + ... + 289088.

Almost surely, 2^42774146 is an apocalyptic number.

42774146 is a deficient number, since it is larger than the sum of its proper divisors (23121274).

42774146 is a wasteful number, since it uses less digits than its factorization.

42774146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578068.

The product of its digits is 37632, while the sum is 35.

The square root of 42774146 is about 6540.1946454215. The cubic root of 42774146 is about 349.7253518845.

The spelling of 42774146 in words is "forty-two million, seven hundred seventy-four thousand, one hundred forty-six".