42782276 has 12 divisors (see below), whose sum is σ = 75162108. Its totient is φ = 21307392.

The previous prime is 42782261. The next prime is 42782309. The reversal of 42782276 is 67228724.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42588676 + 193600 = 6526^2 + 440^2 .

It is a super-3 number, since 3×42782276³ (a number of 24 digits) contains 333 as substring.

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, 19781 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (6263509).

Almost surely, 2^42782276 is an apocalyptic number.

It is an amenable number.

42782276 is a deficient number, since it is larger than the sum of its proper divisors (32379832).

42782276 is a wasteful number, since it uses less digits than its factorization.

42782276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41878 (or 41876 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 42782276 is about 6540.8161570251. The cubic root of 42782276 is about 349.7475076901.

The spelling of 42782276 in words is "forty-two million, seven hundred eighty-two thousand, two hundred seventy-six".