42774356 has 6 divisors (see below), whose sum is σ = 74855130. Its totient is φ = 21387176.

The previous prime is 42774349. The next prime is 42774419. The reversal of 42774356 is 65347724.

42774356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34456900 + 8317456 = 5870^2 + 2884^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5346791 + ... + 5346798.

It is an arithmetic number, because the mean of its divisors is an integer number (12475855).

Almost surely, 2^42774356 is an apocalyptic number.

It is an amenable number.

42774356 is a deficient number, since it is larger than the sum of its proper divisors (32080774).

42774356 is a wasteful number, since it uses less digits than its factorization.

42774356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10693593 (or 10693591 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 42774356 is about 6540.2106999698. The cubic root of 42774356 is about 349.7259242100.

The spelling of 42774356 in words is "forty-two million, seven hundred seventy-four thousand, three hundred fifty-six".