42893636 has 6 divisors (see below), whose sum is σ = 75063870. Its totient is φ = 21446816.

The previous prime is 42893633. The next prime is 42893647. The reversal of 42893636 is 63639824.

It can be written as a sum of positive squares in only one way, i.e., 35331136 + 7562500 = 5944^2 + 2750^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42893593 and 42893602.

It is not an unprimeable number, because it can be changed into a prime (42893633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5361701 + ... + 5361708.

It is an arithmetic number, because the mean of its divisors is an integer number (12510645).

Almost surely, 2^42893636 is an apocalyptic number.

It is an amenable number.

42893636 is a deficient number, since it is larger than the sum of its proper divisors (32170234).

42893636 is a wasteful number, since it uses less digits than its factorization.

42893636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723413 (or 10723411 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 42893636 is about 6549.3233238251. The cubic root of 42893636 is about 350.0507028586.

The spelling of 42893636 in words is "forty-two million, eight hundred ninety-three thousand, six hundred thirty-six".